aside

adv. to the side, on the side; except, besides

n. actor's line directed at an audience and apparently not heard by the other actors

An aside is a literary device in which a character speaks to another character, without any other characters aware of what is said. It is similar to a monologue and soliloquy.
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Noun
1. a line spoken by an actor to the audience but not intended for others on the stage
(hypernym) actor's line, speech, words
2. a message that departs from the main subject
(synonym) digression, excursus, divagation, parenthesis
(hypernym) message, content, subject matter, substance
Adverb
1. on or to one side; "step aside"; "stood aside to let him pass"; "threw the book aside"; "put her sewing aside when he entered"
2. out of the way (especially away from one's thoughts); "brush the objections aside"; "pushed all doubts away"
(synonym) away
3. not taken into account or excluded from consideration; "these problems apart, the country is doing well"; "all joking aside, I think you're crazy"
(synonym) apart
4. in a different direction; "turn aside"; "turn away one's face"; "glanced away"
(synonym) away
5. placed or kept separate and distinct as for a purpose; "had a feeling of being set apart"; "quality sets it apart"; "a day set aside for relaxing"
(synonym) apart
6. in reserve; not for immediate use; "started setting aside money to buy a car"; "put something by for her old age"; "has a nestegg tucked away for a rainy day"
(synonym) by, away

n. insurgent, insurrectionist, mugwump, mutineer, rebel, rioter

(n.)
Something spoken aside; as, a remark made by a stageplayer which the other players are not supposed to hear.
  

(adv.)
So as to be heard by others; privately.
  

(adv.)
Out of one's thoughts; off; away; as, to put aside gloomy thoughts.
  

(adv.)
On, or to, one side; out of a straight line, course, or direction; at a little distance from the rest; out of the way; apart.