1. (noun)subtraction, minus an arithmetic operation in which the difference between two numbers is calculated Synonyms: minus, subtraction, deduction Antonyms: addition
2. (noun)subtraction, deduction the act of subtracting (removing a part from the whole) Synonyms: minus, price reduction, entailment, synthesis, tax write-off, subtraction, deduction, deductive reasoning, tax deduction, discount, implication Antonyms: addition
Synonyms and Antonyms of subtraction 
