On one's feet; walking, jogging or running but not in a vehicle or on the back of an animal. / (now rare, chiefly hunting) On the move; astir. / In progress or in preparation; active, in operation.

(informal) The esophagus/oesophagus.

(idiomatic) To misspeak, to say something embarrassing or wrong, or to make a mistake in public, or a social blunder, that is embarrassing or offensive.

(idiomatic) Indicates disapproval, disregard, disdain, disgust or disbelief. / Used other than figuratively or idiomatically: see my, foot.

(idiomatic) To show oneself in the best or most positive way possible; to make a favorable impression.

(computing, slang) To use products or services one is selling internally, in order to understand their limitations.

Food eaten by or appropriate for dogs in general, whether wild or domesticated. / Food for domesticated dogs. / (computing) Beta software that is tested on the developer’s own computer.

(American football) A playing field on which the game of American football is played. / (Association football) A playing field on which the game of Association football is played.

(American football, US) One who plays American football. / (soccer, UK) One who plays soccer, that is, football. / A large intimidating male.

Tending to travel or do as one pleases; readily without many commitments or responsibility. / (nautical) Of a sail: not properly secured at the bottom.