10s noun[plural only]2 •Tens, written as a number but in plural form; a range of the numbers ten (10) to nineteen (19).Q. 237. Four sixes are how many 24s? 12s? 8s? 6s? 4s? 2s? 1s? 8 fives are how many 10s? 40s? 20s? 5s? 2s? 1s? — 1850 •The tens, the second decade of a century: the 1910s, 2010s, etc.
