What is Aside?

Aside definition and meaning on Dictionary terms:
on or to one side; to or at a short distance apart; away from some position or direction: to turn aside; to move the chair aside.
away from one’s thoughts or consideration: to put one’s cares aside.
in reserve; in a separate place, as for safekeeping; apart; away: to put some money aside for a rainy day.
away from a present group, especially for reasons of privacy; off to another part, as of a room; into or to a separate place: He took him aside and talked business.

in spite of; put apart; notwithstanding: all kidding aside; unusual circumstances aside.

a part of an actor’s lines supposedly not heard by others on the stage and intended only for the audience.
words spoken so as not to be heard by others present.

a temporary departure from a main theme or topic, especially a parenthetical comment or remark; short digression.