減

to fray one's nerves; to wear out one's nerves; to frazzle one's nerves; to be a nervous wreck

Noun or verb acting prenominally; Often used derogatorily

always having a comeback; fast-talking

reduction of expenditure; reduction of expenses; cost reduction; cost-cutting

reducing the number of mouths one needs to feed (esp. by giving up children for adoption, apprenticeship, etc.)

depopulation; falling population; decrease in population; population decline

cost reduction; cost saving

burden reduction; alleviation of a burden

personnel reduction

modulation (of voice)

variation; variety; balance; pace

liveliness (e.g. of writing style)

state of slight intoxication; being a little drunk

Noun or verb acting prenominally

fast-talking; always having another argument ready; not able to keep one's mouth shut; never at a loss for words

budget cut

decrease in appetite; loss of appetite

Proverb

an army marches on its stomach; you can't fight on an empty stomach

reduced tax rate

weight loss; weight reduction; weight decrease

the four arithmetical operations (addition, subtraction, multiplication, division)

depreciation

personnel cut; labor cut; labour cut

to slim down; to lose weight

Buddhism

nothing increases or decreases (because all things are void)

sharp reduction; drastic cut

Computing

load reduction

Ichidan verb - zuru verb (alternative form of -jiru verbs)

to commute a death sentence to life imprisonment