CLOTHING

CLOTHES are made of "CLOTH".
CLOTHING is what I'm wearing.
All our clothes are items of CLOTHING.

to put on clothes   =   TO DRESS   [ to get dressed ]    = (the act)
to wear clothes   =   TO HAVE CLOTHES ON   [ to be dressed ]    ≠ (to be naked)


DRESS CODE  =  CASUAL vs. FORMAL

In formal cases, we wear a SUIT = 2 or 3 items
=  "a three-piece suit" (marriages)