What is the meaning of moment?

noun

• A particular point in time.
  • usage: "the moment he arrived the party began"
  • synonyms: minute, second, instant
• An indefinitely short time.
  • usage: "wait just a moment"; "in a mo"; "it only takes a minute"; "in just a bit"
  • synonyms: mo, minute, second, bit
• At this time.
  • usage: "the disappointments of the here and now"; "she is studying at the moment"
  • synonyms: here and now, present moment
• Having important effects or influence.
  • usage: "decisions of great consequence are made by the president himself"; "virtue is of more moment than security"; "that result is of no consequence"
  • synonyms: consequence, import
• A turning force produced by an object acting at a distance (or a measure of that force. )
• The n-th moment of a distribution is the expected value of the n-th power of the deviations from a fixed value. .