jargon

technical jargon that was opaque to her.

apparently meaningless jargon

be unversed in the jargon of the social scientist

salesmen who use jargon to imply superior knowledge.

the jargon has given us ‘downsizing’ as a euphemism for cuts.

He spoke such a jargon I couldn't make head or tail of what he said.

The guide, Pimp Your Vocab, aims to demystify the jargon used by teenagers and young people.

The only magazine in the waiting room was a scientific journal full of technical jargon above my head.