1
general::
Phrase(s): outside of something
except for something; besides something. • Outside of the cost of my laundry, I have practically no expenses. • Outside of some new shoes, I don’t need any new clothing.
McGrawhill's American Idioms And Phrasal Verbs
2
general::
Except for, aside from, as in Outside of a little lipstick, she wore no makeup. [Colloquial; mid-1800s]
American Heritage Idioms