noun
(uncountable) Any moisture from the atmosphere condensed by cool bodies upon their surfaces.
(uncountable) Moisture in the air that settles on plants, etc in the morning or evening, resulting in drops.
(countable, but see usage notes) An instance of such moisture settling on plants, etc.
(figurative) Anything that falls lightly and in a refreshing manner.
(figurative) An emblem of morning, or fresh vigour.
verb
(transitive) To wet with, or as if with, dew; to moisten.
(intransitive) To deposit dew.