(slang, humorous) Low numbers or a small amount of something, especially seen as signaling one's inexperience or naïveté.

(statistics) The statistical tendency toward a fixed ratio in the results when an experiment is repeated a large number of times; law of averages.

plural of social security number

plural of number needed to harm

plural of purely imaginary number

plural of private enterprise number

(idiomatic) To provide sufficient people to make an event worthwhile.

plural of personal identification number

plural of vehicle identification number

plural of orbital quantum number