jargon
//ˈdʒɑːɡən//
Noun
jargonSingular
jargonsPlural
1
Special words or expressions used by a particular profession or group that are difficult for others to understand.
The legal jargon in the contract was difficult for me to understand.
2
Language that is confusing, meaningless, or unintelligible.
The instructions were full of jargon that nobody could understand.