Moment (time) definition

(1) Having important effects or influence

"Decisions of great consequence are made by the president himself"

"Virtue is of more moment that security"

(2) The n-th moment of a distribution is the expected value of the n-th power of the deviations from a fixed value

(3) A turning force produced by an object acting at a distance (or a measure of that force)

(4) At this time

"The disappointments of the here and now"

"She is studying at the moment"

(5) A particular point in time

"The moment he arrived the party began"

(6) An indefinitely short time

"Wait just a moment"

"It only takes a minute"

"In just a bit"