plural of emptiness

(astronomy) a Chinese constellation near Aquarius and Equuleus, one of the 28 lunar mansions and part of the Black Turtle.

(set theory) The unique set that contains no elements, denoted ∅ or {}.

(set theory) Of a set, containing at least one element; not the empty set.

(baseball) A base without a runner on it.

An unoccupied space where something may be stored / An unoccupied area or volume. / Vacuum; a space containing nothing at all

(arithmetic) The result of multiplying no numbers, conventionally defined to equal one.

(arithmetic) The result of adding no numbers, conventionally defined to equal zero.

(US, sports) to remove the varsity players from a game and insert junior varsity players. Usually happens toward the end of a one-sided contest.

(US, euphemistic, military) The seizure, theft, or loss of a nuclear weapon.