As the hasty result of strong, passionate feelings and without thoughtful consideration.

(statistics) A moment of a probability distribution of a random variable about the random variable's mean.

(education) The time at which learning a topic becomes easiest.

(idiomatic) A short period of time, typically anywhere from several seconds to several minutes or more. / Used other than figuratively or idiomatically: see one, moment.

A seminal moment, in reference to the conversion of Paul the Apostle on the road to Damascus.

The best time to do something, when those involved are in the most workable state of mind.

Synonym of man of the hour

(chiefly politics, journalism) A moment when a public figure is booed in public; (by extension) a moment when a person or régime previously considered unassailable suddenly looks vulnerable; the outbreak of a revolution

(idiomatic) Stop; wait; hold on. Used to interrupt speech or proceedings so that one can make a comment or query.

(slang, ethnic slur, offensive, African-American Vernacular) A moment in which emotion or ignorance overpowers one's rationality, causing an outburst of irrational aggression.