vest
noun
°(now _ rare) A loose robe or outer garment worn historically by men in Arabic or Middle Eastern countries.
°(now _ North America) A sleeveless garment that buttons down the front, worn over a shirt, and often as part of a suit; a waistcoat.
verb
°(commonly used of financial arrangements) To become vested, to become permanent.
synonyms: singlet, tank top, undershirt, waistcoat