減る【へる】
to decrease (in size or number), to diminish, to abate
加減【かげん】
degree, extent, amount, balance, state, condition, (health) condition, state of health, adjustment, moderation, regulation, addition and subtraction, slight sign of ..., slight state of ..., just right for ...
減らす【へらす】
to abate, to decrease, to diminish, to shorten
いい加減【いいかげん】
irresponsible, perfunctory, careless, lukewarm, half-baked, halfhearted, vague, (already) enough, considerably, quite, rather, pretty
手加減【てかげん】
measuring by feel, adjusting by feel, doing by feel, knack, skill, adapting to the situation (one's strength, strictness, etc.), making allowances, using discretion, going easy (on someone)
削減【さくげん】
cut, reduction, curtailment
減少【げんしょう】
decrease, reduction, decline
減速【げんそく】
deceleration
増減【ぞうげん】
increase and decrease, fluctuation
半減【はんげん】
reduction by half, halving
減点【げんてん】
subtracting points, points deducted
減税【げんぜい】
tax reduction
減益【げんえき】
decrease in profits
減俸【げんぽう】
salary reduction, salary cut
減反【げんたん】
reduction (of crop size), reduction of acreage (under cultivation)
減収【げんしゅう】
fall, decrease (in income)
軽減【けいげん】
abatement, reduction
減額【げんがく】
reduction, diminution, abatement
減量【げんりょう】
loss in weight (esp. body weight), weight reduction, loss in quantity, reduction of quantity
減産【げんさん】
decrease in production