dress-n; 3 Senses

Sense Number 1: a one-piece, skirted garment for females

Commentary: DRESS[+artifact][+garment][+one_piece][+skirted][+female]

These are inexpensive copies of designer dresses.
The bride wore a sleeveless ankle-length dress in white.
These dresses are for toddlers.

WordNet 3.0 Sense Numbers: 1

Sense Number 2: a distinctive style of clothing

Commentary: DRESS[+artifact][+clothing][+style][+characterized]

The dancers were wearing traditional African dress from their tribe.
The soldiers' battle dress is desert camouflage, boots and helmet.
Office dress has become more casual over the years.

WordNet 3.0 Sense Numbers: 2, 3

Sense Number 3: formal wear

Commentary: DRESS[+artifact][+clothing][+style][+characterized][+formal]
NOTE: a narrow usage of Sense 2 that means formal, dress-up clothing

Did the invitation indicate that it was dress or casual?
The naval officers were in dress uniform.
John put on his dress shoes for the wedding.

WordNet 0.0 Sense Numbers: 2a