Jargon – Words or expressions used in a profession or by a particular group of people, which is difficult for others to understand
The jars have gone! (Jargon) You know, the ones we keep all the words in for each profession and group.
Examples of jargon in a sentence
She was fed up of all the office jargon her colleagues used in meetings.
Jim was terrified, the skydiving instructor used all sorts of jargon that he didn't understand, he felt like he wasn't ready at all.
When Liz read over his medical report, he could not understand any of the jargon.