(countable) An act or instance of wandering.

(uncountable) The situation where a value or signal etc. deviates from the correct or normal value.

(intransitive) To move without purpose or specified destination; often in search of livelihood.

(intransitive) To stray; stray from one's course; err.

(intransitive) To commit adultery.

(intransitive) To go somewhere indirectly or at varying speeds; to move in a curved path.

(intransitive) Of the mind, to lose focus or clarity of argument or attention.