The vocabulary or phraseology of a particular sphere, discipline, profession, social group, etc.; jargon.

a word or phrase used in a precise sense in a particular subject or field; a technical term. Frequently in plural.

figurative. Inflated, turgid, or inappropriately lofty language; speech or writing composed of high-sounding words and phrases; bombast, rant; in…

Applied contemptuously to any mode of speech abounding in unfamiliar terms, or peculiar to a particular set of persons, as the language of…

With reference to language: technical usage. Obsolete. rare.

A language, dialect, etc., that is strange or unintelligible to the person who hears it; spec. a foreign language. Later also: the vocabulary or…

The peculiar language or jargon of a class. The special phraseology of a particular class of persons, or belonging to a particular subject…

A language; a lingo.

In extended use: jargon or informal speech distinctive to a particular age group, occupation, etc.

The special vocabulary or phraseology of a particular calling or profession; the cant or jargon of a certain class or period.

The mode of speech distinctive of a profession, class, etc.

a lingo or jargon.

The jargon, slang, or peculiar phraseology of a class, originally that of thieves and rogues.

Usually with the. Cant, the canting language.

In extended use: any language not generally understood, esp. the jargon of a social group or subculture.

The ‘dialect’ peculiar to the stage.

transferred. The phraseology or idiom of a particular profession, trade, etc.

U.S. Jargon.

Telephony. Unintelligible noise on a telephone line caused by crosstalk or interference from other lines. rare.

a keyword; a catchword or expression currently fashionable; a term used more to impress than to inform, esp. a technical or jargon term.

a fashionable word, a buzz word.

British slang. Conversation, talk; an instance of this. Also: a dialect or argot.