quelqu'un

Etymology
From.

Pronoun

 * 1)  one (out of several)
 * 2) (in the masculine singular) someone, somebody, anyone, anybody
 * 3) (in the masculine singular)  (a) somebody someone singular or notable, i.e., who stands apart from most others in importance, skill, merit, etc.
 * 4) (in the plural; used with,  or an antecedent) some
 * 5) (in the masculine plural) some people, certain
 * 1) (in the masculine singular)  (a) somebody someone singular or notable, i.e., who stands apart from most others in importance, skill, merit, etc.
 * 2) (in the plural; used with,  or an antecedent) some
 * 3) (in the masculine plural) some people, certain
 * 1) (in the masculine plural) some people, certain

Usage notes

 * The feminine singular is uncommon.
 * To qualify with an adjective, the preposition must be used: