leadとは 意味・読み方・使い方

語源 1

From Middle English led, leed, from 古期英語 lēad (“lead”), from Proto-West Germanic *laud (“lead”), borrowed from Proto-Celtic *ɸloudom, from Proto-Indo-European *plewd- (“to flow”).

Cognate with Scots leid, lede (“lead”), North Frisian lud, luad (“lead”), West Frisian lead (“lead”), Dutch lood (“lead”), German Lot (“solder, plummet, sounding line”), Swedish lod (“lead”), Icelandic lóð (“a plumb, weight”), Irish luaidhe (“lead”) Latin plumbum (“lead”). Doublet of loth. More at flow.

• (graphite in a pencil): Graphite was once believed to be a form of lead; see black lead and plumbago.

発音

• enPR: lĕd, IPA^(key): /lɛd/
• Rhymes: -ɛd
• Homophone: led

名詞

lead (countable かつ uncountable, 複数形 leads)

2. (uncountable) A heavy, pliable, inelastic metal element, having a bright, bluish color, but easily tarnished; both malleable and ductile, though with little tenacity. It is easily fusible, forms alloys with other metals, and is an ingredient of solder and type metal. Atomic number 82, symbol Pb (from Latin plumbum).
3. (countable, nautical) A plummet or mass of lead attached to a line, used in sounding depth at sea or (dated) to estimate velocity in knots.
4. A thin strip of type metal, used to separate lines of type in printing.
5. (uncountable, typography) Vertical space in advance of a row or between rows of text. Also known as leading.

   This copy has too much lead; I prefer less space between the lines.

6. Sheets or plates of lead used as a covering for roofs.
7. (複数形 leads) A roof covered with lead sheets or terne plates.
   • 1625, Francis [Bacon], “Of Building”, in The Essayes […], 3rd edition, London: […] Iohn Haviland for Hanna Barret, →OCLC:

     I would have the tower two stories, and goodly leads upon the top.

   • 1848 November – 1850 December, William Makepeace Thackeray, The History of Pendennis. […], volumes (please specify |volume=I または II), London: Bradbury and Evans, […], published 1849–1850, →OCLC:

     These rooms were on a level with the apartments of our friends Bows and Costigan next door at No. 4; and by reaching over the communicating leads, Grady could command the mignonette-box which bloomed in Bows’s window.

8. (countable) A thin cylinder of graphite used in pencils.
9. (slang) bullets; ammunition.

   They pumped him full of lead.

派生語

動詞

lead (三人称単数 現在形 leads, 現在分詞 leading, 過去形および過去分詞形 leaded)

2. (transitive) To cover, fill, or affect with lead.

   continuous firing leads the grooves of a rifle.

3. (transitive, printing, historical) To place leads between the lines of.

   to lead a page

   leaded matter

使用する際の注意点

Note carefully these three senses are verbs derived from the noun referring to the metallic element, and are unrelated to the heteronym defined below under #Etymology 2.

参考

Further reading

• David Barthelmy (1997–2023), “Lead”, in Webmineral Mineralogy Database.
• “lead”, in Mindat.org‎^[1], Hudson Institute of Mineralogy, 2000–2023.
• lead on Wikipedia.

語源 2

From Middle English leden, from 古期英語 lǣdan (“to lead”), from Proto-West Germanic *laidijan, from Proto-Germanic *laidijaną (“to cause one to go, lead”), causative of Proto-Germanic *līþaną (“to go”), from Proto-Indo-European *leyt- (“to leave, die”).

Cognate with West Frisian liede (“to lead”), Dutch leiden (“to lead”), German leiten (“to lead”), Danish and Norwegian Bokmål lede (“to lead”), Norwegian Nynorsk leia (“to lead”), Swedish leda (“to lead”). Related to 古期英語 līþan (“to go, travel”).

別の表記

• lede, leed (both 廃れた用法)

発音

• (Received 発音) enPR: lēd, IPA^(key): /liːd/
• (General American) IPA^(key): /lid/
• Rhymes: -iːd
• Homophones: leed, lede, lied (“song”)

動詞

lead (三人称単数 現在形 leads, 現在分詞 leading, 過去形および過去分詞形 led)

2. (heading, transitive) To guide or conduct.
   1. To guide or conduct with the hand, or by means of some physical contact connection.

      a father leads a child    a jockey leads a horse with a halter    a dog leads a blind man

      • 1611, The Holy Bible, […] (King James Version), London: […] Robert Barker, […], →OCLC, Matthew 15:14:

        If a blind man lead a blind man, both fall down in the ditch.

      • 1611, The Holy Bible, […] (King James Version), London: […] Robert Barker, […], →OCLC, Luke 4:29:

        They thrust him out of the city, and led him unto the brow of the hill.

      • a. 1645, John Milton, “L’Allegro”, in Poems of Mr. John Milton, […], London: […] Ruth Raworth for Humphrey Mosely, […], published 1646, →OCLC:

        In thy right hand lead with thee / The mountain nymph, sweet Liberty.

      • Template:RQ:Asbjørnsen Brækstad Tales
   2. To guide or conduct in a certain course, or to a certain place or end, by making the way known; to show the way, especially by going with or going in advance of, to lead a pupil; to guide somebody somewhere or to bring somebody somewhere by means of instructions.

      The guide was able to lead the tourists through the jungle safely.

      • 1611, The Holy Bible, […] (King James Version), London: […] Robert Barker, […], →OCLC, Exodus 13:21:

        The Lord went before them by day in a pillar of a cloud, to lead them the way.

      • 1611, The Holy Bible, […] (King James Version), London: […] Robert Barker, […], →OCLC, Psalms 23:2:

        He leadeth me beside the still waters.

      • 1673, John Milton, “[Sonnet] [Sonnet] XXI”, in Poems, &c. upon Several Occasions, London: […] Tho[mas] Dring […], →OCLC:

        This thought might lead me through the world’s vain mask. Content, though blind, had I no better guide.

      • 1913, Joseph C[rosby] Lincoln, chapter I, in Mr. Pratt’s Patients, New York, N.Y.; London: D[aniel] Appleton and Company, →OCLC:

        I stumbled along through the young pines and huckleberry bushes. Pretty soon I struck into a sort of path that, I cal'lated, might lead to the road I was hunting for. It twisted and turned, and, the first thing I knew, made a sudden bend around a bunch of bayberry scrub and opened out into a big clear space like a lawn.

   3. (figuratively): To direct; to counsel; to instruct

      A good teacher should lead their students to the right answer.

   4. To conduct or direct with authority; to have direction or charge of; to command, especially a military or business unit.

      to lead a political party

      to lead the search team

      • 1664, Robert South, “(please specify the sermon number)A Sermon Preached Before the University at Christ-Church, Oxon”, in Sermons Preached upon Several Occasions. […], new edition, volumes (please specify |volume=I to IV), London: […] Thomas Tegg, […], published 1843, →OCLC:

        Christ took not upon him flesh and blood that he might conquer and rule nations, lead armies, or possess places.

   5. To guide or conduct oneself in, through, or along (a certain course); hence, to proceed in the way of; to follow the path or course of; to pass; to spend. Also, to cause (one) to proceed or follow in (a certain course).

      The evidence leads me to believe he is guilty.

      • 1611, The Holy Bible, […] (King James Version), London: […] Robert Barker, […], →OCLC, 1 Timothy 2:2:

        That we may lead a quiet and peaceable life.

      • 1850, [Alfred, Lord Tennyson], In Memoriam, London: Edward Moxon, […], →OCLC, canto XXXIII:

        Nor thou with shadow'd hint confuse / A life that leads melodious days.

      • 1849 May – 1850 November, Charles Dickens, chapter 61, in The Personal History of David Copperfield, London: Bradbury & Evans, […], published 1850, →OCLC:

        You remember […] the life he used to lead his wife and daughter.

3. (intransitive) To guide or conduct, as by accompanying, going before, showing, influencing, directing with authority, etc.; to have precedence or preeminence; to be first or chief; — used in most of the senses of the transitive verb.
4. (heading) To begin, to be ahead.
   1. (transitive) To go or to be in advance of; to precede; hence, to be foremost or chief among.

      the big sloop led the fleet of yachts;  the Guards led the attack;  Demosthenes leads the orators of all ages

      • 1600, Edward Fairfax, The Jerusalem Delivered of Tasso

        As Hesperus, that leads the sun his way.

      • c. 1819, Leigh Hunt, Abou Ben Adhem

        And lo! Ben Adhem's name led all the rest.

      • 1897 December (indicated as 1898), Winston Churchill, chapter IV, in The Celebrity: An Episode, New York, N.Y.: The Macmillan Company; London: Macmillan & Co., Ltd., →OCLC:

        “Well,” I answered, at first with uncertainty, then with inspiration, “he would do splendidly to lead your cotillon, if you think of having one.” ¶ “So you do not dance, Mr. Crocker?” ¶ I was somewhat set back by her perspicuity.

   2. (intransitive) To lead off or out, to go first; to begin.
   3. (intransitive) To be more advanced in technology or business than others.
   4. (heading, sports)
      1. (transitive, card games, dominoes) To begin a game, round, or trick, with

         to lead trumps

         He led the ace of spades.

      2. (intransitive) To be ahead of others, e.g., in a race.
      3. (intransitive) To have the highest interim score in a game.
      4. (baseball) To step off base and move towards the next base.

         The batter always leads off base.

      5. (shooting) To aim in front of a moving target, in order that the shot may hit the target as it passes.
      6. (transitive, climbing) Lead climb.
5. (transitive) To draw or direct by influence, whether good or bad; to prevail on; to induce; to entice; to allure

   to lead someone to a righteous cause

   • 1649, King Charles I of England, Eikon Basilike:

     He was driven by the necessities of the times, more than led by his own disposition, to any rigor of actions.

   • 1611, The Holy Bible, […] (King James Version), London: […] Robert Barker, […], →OCLC, 2 Timothy 3:6:

     Silly women, laden with sins, led away by divers lusts.

   • 2013 June 28, Joris Luyendijk, “Our banks are out of control”, in The Guardian Weekly, volume 189, number 3, page 21:

     Seeing the British establishment struggle with the financial sector is like watching an alcoholic […].  Until 2008 there was denial over what finance had become. When a series of bank failures made this impossible, there was widespread anger, leading to the public humiliation of symbolic figures.

6. (intransitive) To tend or reach in a certain direction, or to a certain place.

   the path leads to the mill;  gambling leads to other vices

   • c. 1590–1591 (date written), William Shakespeare, “The Two Gentlemen of Verona”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, [Act V, scene ii]:

     The mountain-foot that leads towards Mantua.

   • 2013 August 10, “Can China clean up fast enough?”, in The Economist, volume 408, number 8848:

     All this has led to an explosion of protest across China, including among a middle class that has discovered nimbyism. That worries the government, which fears that environmental activism could become the foundation for more general political opposition. It is therefore dealing with pollution in two ways—suppression and mitigation.

7. To produce (with to).

   The shock led to a change in his behaviour.

   • 2013 August 3, “Yesterday’s fuel”, in The Economist, volume 408, number 8847:

     The dawn of the oil age was fairly recent. Although the stuff was used to waterproof boats in the Middle East 6,000 years ago, extracting it in earnest began only in 1859 after an oil strike in Pennsylvania. […] It was used to make kerosene, the main fuel for artificial lighting after overfishing led to a shortage of whale blubber. Other liquids produced in the refining process, too unstable or smoky for lamplight, were burned or dumped.

8. Misspelling of led.
9. (transitive) To live or experience (a particular way of life).

派生語

関連する語

• lad, laddie

名詞

lead (countable かつ uncountable, 複数形 leads)

1. (countable) The act of leading or conducting; guidance; direction, course

   to take the lead

   to be under the lead of another

   • 1796, Edmund Burke, A Letter from the Right Honourable Edmund Burke to a Noble Lord, on the Attacks Made upon Him and His Pension, […], 10th edition, London: […] J. Owen, […], and F[rancis] and C[harles] Rivington, […], →OCLC:

     At the time I speak of, and having a momentary lead, […] I am sure I did my country important service.

2. (countable) Precedence; advance position; also, the measure of precedence; the state of being ahead in a race; the highest score in a game in an incomplete game.

   the white horse had the lead.

   to be in the lead

   She lost the lead.

   Smith managed to extend her lead over the second place to half a second.

   • 2010 December 28, Kevin Darlin, “West Brom 1 – 3 Blackburn”, in BBC Sport‎^[2]:

     Blackburn then regained the lead with a simplest of set-piece goals

3. (UK, countable) An insulated metallic wire for electrical devices and equipment.
4. (baseball) The situation where a runner steps away from a base while waiting for the pitch to be thrown.

   The runner took his lead from first.

5. (uncountable, card games, dominoes) The act or right of playing first in a game or round; the card suit, or piece, so played

   your partner has the lead

6. (acting, theater) The main role in a play or film; the lead role.
   • 1932, Delos W. Lovelace, King Kong, published 1965, page 43:

     "You make moving pictures. In jungles and places." "That's me. And I've picked you for the lead in my next picture."

7. (acting) The actor who plays the main role; lead actor.
8. (business) The person in charge of a project or a work shift etc.

   John is the development lead on this software product.

9. (countable) A channel of open water in an ice field.
10. (countable, mining) A lode.
11. (nautical) The course of a rope from end to end.
12. A rope, leather strap, or similar device with which to lead an animal; a leash
13. In a steam engine, the width of port opening which is uncovered by the valve, for the admission or release of steam, at the instant when the piston is at end of its stroke.
    • Usage note: When used alone it means outside lead, or lead for the admission of steam. Inside lead refers to the release or exhaust.
14. (civil 工学) The distance of haul, as from a cutting to an embankment.
15. (horology) The action of a tooth, such as a tooth of a wheel, in impelling another tooth or a pallet.
16. Hypothesis that has not been pursued

    The investigation stalled when all leads turned out to be dead ends.

17. Information obtained by a detective or police officer that allows him or her to discover further details about a crime or incident.

    The police have a couple of leads they will follow to solve the case.

18. (marketing) Potential opportunity for a sale or transaction, a potential customer.

    Joe is a great addition to our sales team, he has numerous leads in the paper industry.

19. Information obtained by a news reporter about an issue or subject that allows him or her to discover more details.
20. (curling) The player who throws the first two rocks for a team.
21. (newspapers) A teaser; a lead-in; the start of a newspaper column, telling who, what, when, where, why and how. (Sometimes spelled as lede for this usage to avoid ambiguity.)
22. An important news story that appears on the front page of a newspaper or at the beginning of a news broadcast
23. (engineering) The axial distance a screw thread travels in one revolution. It is equal to the pitch times the number of starts.
24. (music) In a barbershop quartet, the person who sings the melody, usually the second tenor
25. (music) The announcement by one voice part of a theme to be repeated by the other parts.
26. (music) A mark or a short passage in one voice part, as of a canon, serving as a cue for the entrance of others.
27. (engineering) The excess above a right angle in the angle between two consecutive cranks, as of a compound engine, on the same shaft.
28. (electrical) The angle between the line joining the brushes of a continuous-current dynamo and the diameter symmetrical between the poles.
29. (electrical) The advance of the current phase in an alternating circuit beyond that of the electromotive force producing it.