i Register
In some senses, outfit is marked as informal. Watch for register when choosing this word.
noun
A set of clothing (with accessories).
She wore a fashionable outfit with matching purse and shoes.
Don't call what you're wearing an outfit.
Gear consisting of a set of articles or tools for a specified purpose.
Any cohesive group of people; a unit; such as a military company.
The League of One was suddenly exposed and in danger of being hunted by enemies of the salarians. Before any harm could be done, the team mysteriously disappeared.[...]Realizing the threat posed by this rogue outfit, the Special Tasks Group dispatched a team of hunters. When they didn't return, the STG dispatched ten of its brightest operators with broad discretionary powers. Only two returned; they reported no evidence of the League.
A business or firm.
Should we buy it here, or do you think the outfit across town will have a better deal?
A sports team.
With only two fit centre-backs available, Tottenham boss Harry Redknapp employed young midfielder Jake Livermore at the back alongside Sebastien Bassong but Spurs struggled against a seasoned Champions League outfit, who beat Barcelona at the Nou Camp in 2009-10 and continually worked their way between the home defence to create some golden opportunities.
verb
To provide with, usually for a specific purpose.
The expedition was outfitted with proper clothing, food, and other necessities.