The number occurring after nine and before eleven, represented in Arabic numerals (base ten) as 10 and in Roman numerals as X.

A set or group with ten elements.

(in the plural) An inexact quantity, typically understood to be between 20 and 100.

(countable, card games) A card in a given suit with a value of ten.

(countable) A denomination of currency, such as a banknote, with a value of ten units.

(countable, US, slang) A perfect specimen, (particularly) a physically attractive person.

(countable, US, slang) A high level of intensity. (Can we add an example for this sense?)

(countable, rowing) The act of rowing ten strokes flat out.