5 letters · 6 points in Scrabble
noun a line spoken by an actor to the audience but not intended for others on the stage
noun a message that departs from the main subject
adverb on or to one side
originFrom Middle English aside, asyde, a-side, oside, from Middle English on side, from Old English on sīdan (literally “on (the) side (of)”), equivalent to a- + side. Compare beside.
Etymology from Wiktionary, CC BY-SA 3.0