What is a synonym for aside?

Here are some synonyms for "aside," depending on the context:

General:

* Apart

* Separate

* To the side

* Away

* Off to the side

* Out of the way

In the context of speech:

* Interjection

* Aside remark

* Under one's breath

* Whispered comment

* Subvocalized remark

In the context of setting something aside:

* Save

* Reserve

* Store

* Put away

* Set apart

In the context of putting something aside (e.g. worries):

* Forget

* Ignore

* Disregard

* Dismiss

* Suppress

The best synonym will depend on the specific situation and the meaning you want to convey.