k

[[t]ke͟ɪ[/t]]

K's, k's

1) N-VAR K is the eleventh letter of the English alphabet.

2) K or k is used as an abbreviation for words beginning with k, such as `kilometre', `kilobyte', or `king'.

3) NUM: usu num NUM K or k is sometimes used to represent the number 1000, especially when referring to sums of money. [INFORMAL]

I used to make over 40k.