! Jargonis an uncountable noun. Do not sayjargons.
WORD FOCUS: language WORD FOCUS: language dialectthe form of a language that is spoken in a particular area slanginformal words used by people who belong to a particular group, for example young people, criminals etc jargonwords used by people who do a particular job or are interested in a particular subject, which ordinary people cannot easily understand terminologywords used in a particular subject such as science or medicine journaleselanguage often used in newspapers legalesedisapprovinglanguage used by lawyers or in legal documents, which is difficult for ordinary people to understand ➔ See alsolanguage
Definition of jargon from the Longman Dictionary of Contemporary English within the topic LINGUISTICS