noun
plural tens
[count] :the number
[count] :the tenth in a set or series
[noncount] :ten o'clock
[count] a US :a ten-dollar bill
b Brit :a ten-pound note
[singular] something that is the best
a very attractive person
ten a penny
Brit informal :very common
ten out of ten
used to say that something was done very well
ten to one
informal :very likely