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

(idiomatic) A moment of great drama or sentimentality, suggesting the climax of a film.

(physics) The perpendicular distance from a pivot to a point undergoing torque

The moment when a country or a society realizes that it needs to catch up with apparent technological and scientific developments made by some other country or countries by increasing its investment into education, innovative research and development, etc.

(idiomatic) The moment or instant at which the solution to a problem, or some other significant realization, becomes clear.

Alternative form of aha moment

(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.