The noun moment has 6 senses (first 4 from tagged texts)
1. (86) moment, minute, second, instant -- (a particular point in time; "the moment he arrived the party began")
2. (73) moment, minute, second, bit -- (an indefinitely short time; "wait just a moment"; "it only takes a minute"; "in just a bit")
3. (1) here and now, present moment, moment -- (at this time; "the disappointments of the here and now"; "she is studying at the moment")
4. (1) consequence, import, moment -- (having important effects or influence; "decisions of great consequence are made by the president himself"; "virtue is of more moment that security")
5. moment -- (a turning force produced by an object acting at a distance (or a measure of that force))
6. moment -- (the n-th moment of a distribution is the expected value of the n-th power of the deviations from a fixed value)