(transitive) Often used in a prediction (chiefly in woe betide) or a wish: to happen to (someone or something); to befall.

(pharmacology) A blocking agent, one of a class of drugs used to treat hypertension and control the rate at which the heart beats.

A radioactive substance emitting beta particles.

(neurology) An electrical signal produced by the brain while the subject mentally active.

(publishing) A person who informally proofreads another person's text before the latter makes it available to the general public.

(Ireland, idiomatic) eventually, despite all the confusion.

(transitive) To signify by some visible object; show by signs or tokens. / (transitive) To foreshow by present signs; indicate something future by that which is seen or known.

(organic chemistry) A lactam having a four-membered ring structure; a structural element of many antibiotics such as penicillin.

(transitive, idiomatic) To overwhelm or overcome / (transitive, idiomatic) To trick or con. / (transitive, idiomatic) To gain an advantage over.

(idiomatic) To invent the next great thing; to have a better idea.