To compliment someone, often insincerely and sometimes to win favour.
To enhance someone's vanity by praising them.
To portray someone to advantage.
Her portrait flatters her.
To encourage or cheer someone with (usually false) hope.
A type of set tool used by blacksmiths.
A flat-faced fulling hammer.
A drawplate with a narrow, rectangular orifice, for drawing flat strips such as watch springs.
Someone who flattens, purposely or accidently. Also flattener.
Someone who lives in a rented flat.