A decennium: a period of ten years.
Decennial: of or related to a ten-year period.
The act of rowing ten strokes flat out.
A card in a given suit with a value of ten.
A perfect specimen, (particularly) a physically attractive person.
A set or group with ten elements.
An inexact quantity, typically understood to be between 20 and 100.
A denomination of currency, such as a banknote, with a value of ten units.
A high level of intensity.
The number occurring after nine and before eleven, represented in Arabic numerals (base ten) as 10 and in Roman numerals as X.