**Synonyms:** deduction, subtraction

**Definition:** the act of subtracting (removing a part from the whole)

**Usage:** *he complained about the subtraction of money from their paychecks*

**Similar words:** decrease, diminution, reduction, step-down

**Definition:** the act of decreasing or reducing something

**Synonyms:** subtraction, minus

**Definition:** an arithmetic operation in which the difference between two numbers is calculated

**Usage:** *the subtraction of three from four leaves one; four minus three equals one*

**Similar words:** arithmetic operation

**Definition:** a mathematical operation involving numbers