'un

Etymology
The apostrophe is not justified historically: this word preserves an original pronunciation of without an initial ; see  for more.

Pronoun

 * 1)  One (a thing).
 * Give me one of those round 'uns.
 * 1)  One (a person).
 * We've got a clever 'un here!

Alternative forms

 * in(s), 'in(s)
 * in(s), 'in(s)