Jargon is special words or expressions used by a particular profession, trade, or group that are difficult for outsiders to understand. It can be technical, such as medical or legal terminology, or occupational, such as software development terms.

Jargon allows precise and efficient communication within a group, but it can exclude or confuse outsiders. In writing, jargon should be used sparingly and explained when the audience is not specialist. It differs from slang, which is informal and often associated with subcultures.

Key points

• Specialised language of a group
• Efficient for insiders
• Can exclude outsiders
• Distinct from slang