Suit (Noun) = A set of outer clothes made of the same fabric and designed to be worn together.
Suit (Verb) = Convenient for or acceptable to.
Synonyms: Attire, Outfit, Costume, Befit, Match.
Example: There was much hue and cry over the Rs. 10 lakh suit of Mr. Narendra Modi.
Suite (Noun) = A set of rooms designated for one person's or family's use
Synonyms: Apartment, Chambers, Flat, Quarters
Example: The Taj has the provision of suites for the State dignitaries.