3 definitions found

From WordNet (r) 2.0 [wn]:

addition

noun

1: a component that is added to something to improve it; "the addition of a bathroom was a major improvement"; "the addition of cinammon improved the flavor" [syn: {add-on}, {improver}]

2: the act of adding one thing to another; "the addition of flowers created a pleasing effect"; "the addition of a leap day every four years" [ant: {subtraction}]

3: a quantity that is added; "there was an addition to property taxes this year"; "they recorded the cattle's gain in weight over a period of weeks" [syn: {increase}, {gain}]

4: something added to what you already have; "the librarian shelved the new accessions"; "he was a new addition to the staff" [syn: {accession}]

5: a suburban area laid out in streets and lots for a future residential area

6: the arithmetic operation of summing; calculating the sum of two or more numbers; "the summation of four and three gives seven"; "four plus three equals seven" [syn: {summation}, {plus}]

From The Collaborative International Dictionary of English v.0.44 [gcide]:

Addition \Ad*di"tion\, noun [F. addition, L. additio, fr. addere to add.]

1. The act of adding two or more things together; -- opposed to {subtraction} or {diminution}. ''This endless addition or addibility of numbers.'' --Locke.

2. Anything added; increase; augmentation; as, a piazza is an addition to a building.

3. (Math.) That part of arithmetic which treats of adding numbers.

4. (Mus.) A dot at the right side of a note as an indication that its sound is to be lengthened one half. [R.]

5. (Law) A title annexed to a man's name, to identify him more precisely; as, John Doe, Esq.; Richard Roe, Gent.; Robert Dale, Mason; Thomas Way, of New York; a mark of distinction; a title.

6. (Her.) Something added to a coat of arms, as a mark of honor; -- opposed to {abatement}.

{Vector addition} (Geom.), that kind of addition of two lines, or vectors, AB and BC, by which their sum is regarded as the line, or vector, AC.

Syn: Increase; accession; augmentation; appendage; adjunct.

From Moby Thesaurus II by Grady Ward, 1.0 [moby-thes]:

271 Moby Thesaurus words for "addition": Anschluss, L, access, accession, accessory, accident, accidental, accompaniment, accord, accretion, accrual, accruement, accumulation, acquirement, acquisition, addenda, addendum, adding, additament, additionally, additive, additory, additum, adjunct, adjuvant, advance, affairs, affiliation, affinity, agglomeration, aggrandizement, aggregation, agreement, alliance, also, amalgamation, ampliation, amplification, annex, annexation, appanage, appendage, appendant, appendix, appreciation, approximation, appurtenance, appurtenant, as well, as well as, ascent, assemblage, assimilation, association, attachment, attainment, augment, augmentation, auxiliary, ballooning, besides, beyond, blend, blending, bloating, bond, boom, boost, broadening, buildup, cabal, cartel, centralization, closeness, coalescence, coalition, coda, collateral, combination, combine, combining, combo, coming by, complement, composition, concomitant, confederacy, confederation, congeries, conglomeration, conjugation, conjunction, connectedness, connection, consolidation, conspiracy, contiguity, contingency, contingent, continuation, contrariety, corollary, crescendo, dealings, deduction, deployment, development, differentiation, disjunction, dispersion, division, dragging down, earnings, ecumenism, edema, elevation, ell, embodiment, encompassment, enlargement, enosis, equation, evolution, expansion, extension, extra, extrapolation, fanning out, federalization, federation, filiation, fixture, flare, flood, furthermore, fusion, gain, gaining, getting, getting hold of, greatening, growth, gush, happenstance, hike, hiking, homology, hookup, in addition, in addition to, incidental, inclusion, incorporation, increase, increment, inessential, inflation, integration, intercourse, interpolation, intimacy, into the bargain, inversion, involution, joining, jump, junction, junta, league, leap, liaison, link, linkage, linking, magnification, making, marriage, meld, melding, mere chance, merger, moneygetting, moneygrubbing, moneymaking, moreover, mounting, multiplication, mutual attraction, nearness, nonessential, not-self, notation, obtainment, obtention, offshoot, other, over and above, package, package deal, pendant, practice, procural, procurance, procuration, procurement, productiveness, proliferation, propinquity, proportion, proximity, putting together, raise, raising, rapport, reckoning, reduction, reinforcement, relatedness, relation, relations, relationship, rider, rise, secondary, securement, side effect, side issue, similarity, snowballing, solidification, splay, spread, spreading, subsidiary, subtraction, summation, summing-up, superaddition, supplement, surge, swelling, sympathy, syncretism, syndication, syneresis, synthesis, tailpiece, tie, tie-in, tie-up, to boot, too, transformation, trover, tumescence, undergirding, unessential, unification, union, uniting, up, upping, upsurge, upswing, uptrend, upturn, waxing, wedding, widening, wing, winning

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