He wore a frock-coated suit to the wedding.

She wore a beautiful collection of cocktail frocks to the party.

She looked stunning in her cocktail frock.

She arrived at the party frockless.

He wore a stylish frockcoat to the party.

The gentlemen at the party were all wearing frockcoats.

He looked elegant in his frockcoated attire.

She wore a frockish dress to the party.

She wore a frocklike dress to the party.