simple past tense and past participle of flat-foot

(medicine) Lack of emotion, or of apparent emotion.

The property of two (or more) elements whereby they affect each other equally. / The property of possessing two opposite characteristics in equal strength.

A man's cap made from wool, tweed, or other soft material. It has a small peak and fits snugly on the head. / Cap paper, not folded.

plural of flat tyre

Alternative spelling of flat-earther

A person who believes or advocates the theory that the planet Earth is flat.

(dated) silver, or silver-plated cutlery

spiral wrack

Alternative form of flat-bottomed