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addition

 
Noun addition has 6 senses
  1. addition, add-on, improver - 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"
    --1 is a kind of component, constituent, element
    --1 has particulars:
     additive; afterthought; annex, annexe, extension, wing; attachment; elongation, extension
    Derived form: verb add3
  2. addition - 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"
    --2 is a kind of
    increase, step-up
    Antonyms: subtraction, deduction
    --2 has particulars: retrofit; fluoridation, fluoridization, fluoridisation
    Derived form: verb add1
  3. addition, increase, gain - 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"
    --3 is a kind of indefinite quantity
    --3 has particulars: accretion
  4. accession, addition - something added to what you already have; "the librarian shelved the new accessions"; "he was a new addition to the staff"
    --4 is a kind of acquisition
  5. addition - a suburban area laid out in streets and lots for a future residential area
    --5 is a kind of
    suburb, suburbia, suburban area
  6. summation, addition, plus - 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"
    --6 is a kind of arithmetic operation
    Derived forms: verb add5, verb add4
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