To make thin, lean, slender, or rare; reduce in thickness or density; draw out; attenuate.To make smaller in degree or appearance; make less blamable in fact or in estimation; lower in importance or degree, as a fault or crime; mitigate; palliate: opposed to aggravate.To detract from, as a person or thing; lessen in honor, estimation, or importance.Synonyms See palliate.To become thin or thinner or more slender; be drawn out or attenuated.Thin; slender.