Synonyms of the word

subtraction

• n. (arithmetic, uncountable) The process of subtracting a number from another.
• n. (arithmetic, countable) A calculation involving subtracting.
• n. The removal of something.

decrease

• v. (intransitive) Of a quantity, to become smaller.
• v. (transitive) To make (a quantity) smaller.
• n. An amount by which a quantity is decreased.
• n. (knitting) A reduction in the number of stitches, usually accomplished by suspending the stitch to be…

deduction

• n. That which is deducted; that which is subtracted or removed.
• n. A sum that can be removed from tax calculations; something that is written off.
• n. (logic) A process of reasoning that moves from the general to the specific, in which a conclusion follows…
• n. A conclusion; that which is deduced, concluded or figured out.
• n. The ability or skill to deduce or figure out; the power of reason.

diminution

• n. A lessening, decrease or reduction.
• n. The act or process of making diminutive.
• n. (music) a compositional technique where the composer shortens the melody by shortening its note values.

minus

• conj. (mathematics) Difference of the previous number from the following number.
• prep. (informal) Without.
• adj. (mathematics) Negative.
• adj. On the negative part of a scale.
• adj. (postpositive) Ranking just below a designated rating.
• n. (mathematics) A minus sign (−).
• n. (mathematics) A negative quantity.
• n. A downside or disadvantage.

reduction

• n. The act, process, or result of reducing.
• n. The amount or rate by which something is reduced, e.g. in price.
• n. (chemistry) A reaction in which electrons are gained and valence is reduced; often by the removal of oxygen…
• n. (cooking) The process of rapidly boiling a sauce to concentrate it.
• n. (mathematics) The rewriting of an expression into a simpler form.
• n. (computability theory) a transformation of one problem into another problem, such as mapping reduction…
• n. (music) An arrangement for a far smaller number of parties, e.g. a keyboard solo based on a full opera.
• n. (philosophy, phenomenology) A philosophical procedure intended to reveal the objects of consciousness…
• n. (medicine) A medical procedure to restore a fracture or dislocation to the correct alignment.

step-down

• adj. That decreases in stages.
• adj. (of a transformer etc) That reduces a voltage.