lessen (glagol) ease, relieve, relieve of, mitigate, lighten, alleviate, assuage, soothe, soften, allay, abate, buffer; ease, relieve, relieve of, mitigate, lighten, alleviate, assuage, soothe, soften, allay, abate, buffer, cushion; reduce, diminish, decrease, cut down, attenuate, abate; reduce, diminish, decrease, cut down, attenuate