The jargons of the East, Far and Near, he spoke as his mother tongue.
French, English, Spanish—all were jargons to these people of the southern desert.
With jargons as with coins the poorer (simpler) drives out the better (subtler and more complex).
The language of Worship was but one; though the jargons of Opinion were many.
Such conventional languages are usually called "jargons," and their existence is rather brief.
Oh, leave these jargons, and go your way straight to God's work, in simplicity and singleness of heart.
Prussian Trenck, the poor subterranean Baron, jargons and jangles in an unmelodious manner.
A little attention to the jargons invented by children might have been serviceable to certain philologists.
mid-14c., "unintelligible talk, gibberish; chattering, jabbering," from Old French jargon "a chattering" (of birds), also "language, speech," especially "idle talk; thieves' Latin." Ultimately of echoic origin (cf. Latin garrire "to chatter," English gargle). Often applied to something the speaker does not understand, hence meaning "mode of speech full of unfamiliar terms" (1650s). Middle English also had it as a verb, jargounen "to chatter" (late 14c.), from French.
A special language belonging exclusively to a group, often a profession. Engineers, lawyers, doctors, tax analysts, and the like all use jargon to exchange complex information efficiently. Jargon is often unintelligible to those outside the group that uses it. For example, here is a passage from a computer manual with the jargon italicized: “The RZ887-x current loop interface allows the computer to use a centronics blocked duplex protocol.” (See slang.)