(business, US) A retailer that offers a wider selection of merchandise in a category than existing retailers, at lower prices, thereby gaining substantial share of the market and "killing" the existing retailers.

(linguistics) A linguistic category of words (or more precisely lexical items), generally defined by the syntactic or morphological behaviour of the lexical item in question, such as noun or verb.

A register of all bibliographic items found in a particular library or group of libraries, such as those belonging to a university system spread out over several geographic locations.

(library science) A computerized online publicly accessible catalog of the materials held in a library, or library system.

(organic chemistry) A solid phase-transfer catalyst, often in the form of beads, that catalyzes a reaction between a liquid and a gas

(obsolete, transitive) To trick, cheat.

A semantic or ontological error by which a property is ascribed to a thing that could not possibly have that property.

Non-Oxford British English standard spelling of catechize.

(statistics) A nominal variable.

present participle of catch up