leafとは

意味・読み方・使い方

語源

From Middle English leef, from 古期英語 lēaf, from Proto-West Germanic *laub, from Proto-Germanic *laubą (“leaf”) (compare West Frisian leaf, Low German Loov, Dutch loof, German Laub, Danish løv, Swedish löv, Norwegian Nynorsk lauv), from Proto-Indo-European *lowbʰ-o-m, from *lewbʰ- (“leaf, rind”)^[1] (compare Irish luibh (“herb”), Latin liber (“bast; book”), Lithuanian lúoba (“bark”), Albanian labë (“rind”), Latvian luba (“plank, board”), Russian луб (lub, “bast”)).

発音

• enPR: lēf, IPA^(key): /liːf/
• 韻: -iːf
• 異形同音異義語: Leith (with th-fronting), lief

名詞

leaf (countable かつ uncountable, 複数形 leaves)

1. The usually green and flat organ that represents the most prominent feature of most vegetative plants.
   • 2013 May-June, William E. Conner, “An Acoustic Arms Race”, in American Scientist, volume 101, number 3, page 206-7:

     Earless ghost swift moths become “invisible” to echolocating bats by forming mating clusters close (less than half a meter) above vegetation and effectively blending into the clutter of echoes that the bat receives from the leaves and stems around them.

2. Anything resembling the leaf of a plant.
3. A sheet of any substance beaten or rolled until very thin.

   gold leaf

4. A sheet of a book, magazine, etc (consisting of two pages, one on each face of the leaf).

   Synonyms: folio, folium

5. (advertising, dated) Two pages.
   • 1900, Profitable Advertising (volume 10, issue 2, page 893)

     Heretofore advertisers have had to buy and pay for a leaf — two pages.

6. (in the plural) Tea leaves.
7. A flat section used to extend the size of a table.
9. A moveable panel, e.g. of a bridge or door, originally one that hinged but now also applied to other forms of movement.

   The train car has one single-leaf and two double-leaf doors per side.

   Hyponym: doorleaf

   Meronym: stile

10. (botany) A foliage leaf or any of the many and often considerably different structures it can specialise into.
11. (computing, mathematics) In a tree, a node that has no descendants.
    • 2011, John Mongan, Noah Kindler, Eric Giguère, Programming Interviews Exposed

      The algorithm pops the stack to obtain a new current node when there are no more children (when it reaches a leaf).

12. The layer of fat supporting the kidneys of a pig, leaf fat.
13. One of the teeth of a pinion, especially when small.
14. (slang, uncountable) Cannabis.
15. (Internet slang, derogatory) A Canadian person.

同意語

• phyllon

派生語

動詞

leaf (三人称単数 現在形 leafs, 現在分詞 leafing, 過去形および過去分詞形 leafed)

1. (intransitive) To produce leaves; put forth foliage.
2. (transitive) To divide (a vegetable) into separate leaves.

   The lettuce in our burgers is 100% hand-leafed.

同意語

• leave (verb)

派生語

• leafing
• leaf through

参考

• foliage
• frond
• needle

Further reading

• leaf on Wikipedia.
• leaf (disambiguation) on Wikipedia.
• leaf in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
• leaf at OneLook Dictionary Search

参照

アナグラム

• Lafe, alef, feal, flea

発音

• IPA^(key): /læ͜ɑːf/

語源 1

From Proto-Germanic *laubą. Cognate with West Frisian leaf, Old Saxon lōf, Old High German loup, Old Norse lauf, Gothic ���������� (laufs).

名詞

lēaf n

1. leaf
2. page

語形変化

派生した語

• Middle English: leef, lefe, leve, lewe
  • English: leaf
  • Scots: leaf, lefe, leif
  • Yola: laafe

語源 2

From Proto-Germanic *laubō. Cognate with Old High German *louba (German Laube).

名詞

lēaf f

1. permission

語形変化