Definition of "zen"

(religion) Synonym of enlightenment, particularly the kind acquired through Zen meditation.  examples

An approach to instruction, understanding, or an activity similarly emphasizing simplicity and intuition rather than conventional thinking or fixation on goals.  examples

(religion) Alternative letter-case form of Zen: of or related to Zen Buddhism, particularly its focus on indirect teaching of wisdom through riddles and stories.  quotations  examples

(colloquial) Wise, displaying enlightenment or similar wisdom, insightful, unburdened and free of worries, extremely relaxed and capable.  examples