(transitive) To improve. / (intransitive) To become better; to improve. / (transitive) To surpass in excellence; to exceed; to excel.

Alternative spelling of bettor

A person who makes a bet, such as a wager on the outcome of a game of chance or a sporting event.

A person's spouse or lover, most commonly a man's wife. / (archaic) A very close friend or companion.

(transitive) To change one's mind concerning, especially to decide against.

(idiomatic, with bare infinitive, informal) Should; ought to; need to; must.

(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.

plural of betta

Any fish of the genus Betta, especially Betta splendens (the Siamese fighting fish).