To become calm or quiet.

intransitive. To rest and recover after vigorous physical activity; to take a breather. Also figurative: to pause in order to reflect, relax, or…

intransitive. To become peaceful, calm down; to moderate. rare.

Of passion: To subside, calm down. Of the brain, mind, etc.: To become calm or composed.

intransitive (for reflexive). Obsolete.

to breathe freely (also easy, easily) and variants: to feel at ease in a particular situation or environment. Also: to relax; to recover one's…

intransitive. To become tranquil or quiet.

figurative. intransitive. colloquial (originally U.S.). With out. To calm down, relax; to take it easy.

Originally U.S. intransitive. To calm down from an angry or agitated state.

intransitive. Of the sea or wind: To become calm. Obsolete except with down. Also figurative.

intransitive. To become less tense, anxious, or stressed; to calm down. Frequently in imperative.

slang (originally U.S.). to cool it: to relax, calm down; (also) to curtail or put an end to an activity (frequently with on, with). Frequently in…

intransitive. to Zen out: to enter a state of meditative calmness or serenity of mind, emotions, etc.; to relax. Cf. Zen, n. 2.

intransitive. colloquial (originally U.S.). With out. To become relaxed, esp. under the influence of a drug. Also (occasionally) transitive (reflexive…

A (notional) pill used to calm or relax a person. Frequently in to take a chill pill: to calm down, to relax, to ‘chill out’ (usually in imperative)…

intransitive. To calm down and relax; to take it easy, to chill (see chill, v. additions 4). Often in imperative: ‘relax’, ‘calm down’.