To Particularize

1. (transitive) To make particular, as opposed to general; to restrict to a specific or individual case, class etc.; to single out.
2. (transitive, intransitive) To be specific about (individual instances); to go into detail (about), to specify.
3. (intransitive) To differentiate, make distinct from others.

(to restrict to a specific case): set apart; segregate

(to go into detail): clarify, explicitize; specify

(to make distinct from others): distinguish, severalize; differentiate