(evolutionary theory) Intervention by humans in the breeding of plants or animals in order to preserve selected genetic traits.

(zoology) Pertaining to (what is now classified as) the superorder Selachimorpha or division Selachii, comprising the sharks; or, sometimes more broadly, to the subclass Elasmobranchii, including sharks, rays and related species.

(zoology) Any organism of the superorder Selachimorpha or subclass Elasmobranchii; an extant shark (or related species).

(transitive, idiomatic) To betray, especially in a manner which causes serious difficulty for the one betrayed.

Dated form of full of oneself.

(idiomatic) To deceive or cheat someone.

present participle of sell past the close

To continue trying to convince a customer of the benefits of making a purchase after the customer has already decided to make that purchase; to oversell.

To make an unfavorable exchange, especially of something of great, but deferred value for something of very low, but immediate value.

(transitive) To sell asset(s) for the purpose of getting rid of them quickly rather than for maximizing profit.