{adv. phr.} Said as a remark in a low tone of voice; used in theaters where the actor turns toward the audience as if to "think out loud." * /During the concert Tim said to his wife as an aside, "The conductor has no idea how to conduct Beethoven."/
AS AN ASIDE
Meaning of AS AN ASIDE in English
Slang English vocab. Английский сленговый словарь. 2012