Aside

on or to one ; 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.
aside from,

apart from; besides; excluding:
Aside from her salary, she receives money from investments.
except for:
They had no more food, aside from a few stale rolls.

Contemporary Examples

aside from the PDA that spills over from the gay bars in my neighborhood, I’ve never seen a man more in love with another man.
David Gergen, I’m Cheating On You Jessi Klein November 2, 2008

aside from producing odors and mountains of trash, they increasingly produce power.
Garbage In, Power Out The Daily Beast November 23, 2014

He tries to reignite his romance with his twin sister, Cersei, but she brushes him aside.
Game of Thrones’ Season 4 Premiere ‘Two Swords’: Valyrian Steel, Arya’s Revenge, and the Red Viper Andrew Romano April 6, 2014

Do you watch it right away or do you set it aside for some eventuality like a terrible flu or a terrible snow storm?
Why We Binge-Watch Television Kevin Fallon January 7, 2014

Not many scoring chances, but aside from a good save late by Howard, neither did England do much.
World Cup Wrap-Up Joshua Robinson June 11, 2010

Historical Examples

Then take out the best pieces of giblet, trim them neatly, and set them aside.
The Skilful Cook Mary Harrison

It was the colonel who drew Crewe aside, or that moment was his last.
Jack O’ Judgment Edgar Wallace

Granger went on sorting out his papers, burning them or putting them aside.
Murder Point Coningsby Dawson

This set it aside more absolutely than any divorce a vinculo could undo it.
Folkways William Graham Sumner

(aside, reading the letter) I’ll learn ‘er bloomin’ symptoms—I must be ‘is patient.
Oh! Susannah! Mark Ambient

adverb
on or to one side: they stood aside to let him pass
out of hearing; in or into seclusion: he took her aside to tell her of his plan
away from oneself: he threw the book aside
out of mind or consideration: he put aside all fears
in or into reserve: to put aside money for old age
(preposition) (mainly US & Canadian) aside from

besides: he has money aside from his possessions
except for: he has nothing aside from the clothes he stands in Compare apart (sense 7)

noun
something spoken by an actor, intended to be heard by the audience, but not by the others on stage
any confidential statement spoken in undertones
a digression
adv.

c.1300, “off to one side;” mid-14c., “to or from the side;” late 14c., “away or apart from others, out of the way,” from a- (1) + side (n.). Noun sense of “words spoken so as to be (supposed) inaudible” is from 1727. Middle English had asidely “on the side, indirectly” (early 15c.) and asideward “sideways, horizontal” (late 14c.).
see:

all joking aside
lay aside
set aside
take aside