(idiomatic, obsolete) Used to form idioms meaning "to force someone to work hard or to focus intensely upon their work".

(idiomatic) Hard at work.

guided by practical experience and observation rather than by theory / (idiomatic) hardheaded, stubborn / (of a person) tough and relentlessly practical and thus not given to sentiment.

(idiomatic) The tail end piece of a cooked fowl (chicken, turkey etc.).

Having a flattened beak or snout.

a Polynesian musical instrument

An electronic device able to detect specific combinations of chemicals in gaseous form.

Firehead tetra (fish).

(idiomatic, slang) Cocaine.

(chiefly UK) snobbish, condescending or aloof