DictionaryjargonSpecialized language
noun

jargon

JAR-gun/ˈdʒɑːrɡən/

Language used by a particular group or profession that outsiders may find difficult to understand.

The chart's medical jargon is familiar to clinicians but puzzling to the patient.

Jargon as professional shorthand in a medical chart, readily understood by clinicians but unfamiliar to a patient.
Etymology

Old French jargon could mean birds’ chattering as well as speech. English moved from unintelligible talk to a profession’s specialized language, retaining the suggestion that outsiders may struggle to understand it.

In context

Design Tool Unlocked1:45
Instead of technical jargon, use language that makes sense to your users. This helps them understand what to do without guessing.
Understanding Usability Heuristics For Better UX Testing? - Design Tool Unlocked

More examples

  • The contract is full of legal jargon.
  • New employees need time to learn the industry's jargon.
  • Please replace the technical jargon with words our customers understand.

Similar words

terminology
Names a field's specialized terms without implying difficulty for outsiders.
lingo
Informally names a group's language, not necessarily difficult to understand.