additionとは

発音

• IPA^(key): /əˈdɪʃən/, /æˈdɪʃən/
• 韻: -ɪʃən
• Homophone: edition (weak vowel merger)

名詞

addition (countable かつ uncountable, 複数形 additions)

1. (uncountable) The act of adding anything.

   The addition of five more items to the agenda will make the meeting unbearably long.

2. Anything that is added.
3. (uncountable) The arithmetic operation of adding.
4. (music) A dot at the right side of a note as an indication that its sound is to be lengthened one half.
5. (chiefly law) A title annexed to a person's name to identify him or her more precisely, as in "John Doe, Esq.", "Robert Dale, Mason", "Thomas Way, of New York".
   • c. 1599–1602, William Shakespeare, The Tragicall Historie of Hamlet, Prince of Denmarke: […] (Second Quarto), London: Printed by I[ames] R[oberts] for N[icholas] L[ing] […], published 1604, OCLC 606515358, [Act I, scene iv]:

     […] They clip vs drunkards, and with Swiniſh phraſe / Soyle our addition, and indeede it takes / From our atchieuements, though perform’d at height / The pith and marrow of our attribute […]

6. (heraldry) Something added to a coat of arms, as a mark of honour; opposed to abatement.

同意語

• (act of adding): adding, annexation, inclusion
• (thing added): extra, supplement; See also Thesaurus:adjunct

反意語

• (act of adding): exclusion, reduction
• (thing added): deduction, reduction; See also Thesaurus:decrement
• (arithmetic operation): subtraction

派生語

• additional

関連する語

• add
• adder

参考

• plus sign (+)
• addition, summation: (augend) + (addend strict sense) = (addend broad sense) + (addend broad sense) = (summand) + (summand) = (sum, total)
• subtraction: (minuend) − (subtrahend) = (difference, remainder)
• multiplication: (multiplier, multiplicator) × (multiplicand) = (factor) × (factor) = (product)
• division: (dividend) ÷ (divisor) = (quotient), remainder left over if divisor does not divide dividend

参照

• “addition” in Douglas Harper, Online Etymology Dictionary, 2001–2018.