full dress (Adjective) — Suitable for formal occasions. ex. "a full-dress uniform"
full dress (Adjective) — (of an occasion) requiring formal clothes. ex. "a full-dress ceremony"
full dress (Adjective) — Complete in every respect. ex. "a full-dress debate" ex. "a full-dress investigation"
full dress (Noun) — Formalwear consisting of full evening dress for men.