1
vb abate, contract, curtail, cut down, decline, diminish, drop, dwindle, ease, fall off, lessen, lower, peter out, reduce, shrink, slacken, subside, wane
2
n abatement, contraction, cutback, decline, diminution, downturn, dwindling, ebb, falling off, lessening, loss, reduction, shrinkage, subsidence
Antonyms
, vb enlarge, expand, extend, increase
n expansion, extension, growth