buzzword

buzzword
buzz‧word /ˈbʌzwɜːd $ -wɜːrd/ noun [countable]
a word or phrase from one special area of knowledge that people suddenly think is very important:
    ‘Multimedia’ has been a buzzword in the computer industry for years.
     

THESAURUS

   ▪ word a single group of letters that are used together with a particular meaning: ‘Casa’ is the Italian word for ‘house’. | I looked up the word in a dictionary.
   ▪ name a word that you use for a particular thing, place, organization etc: Iberia is the ancient name for the Spanish Peninsula. | What’s the name of that type of dog?
   ▪ term a word or group of words that is used in a specific subject or area of language: The medical term for losing your hair is ‘alopecia’. | People use the term ‘carbon footprint’ to talk about man’s polluting effect on the environment.
   ▪ phrase a group of words that have a particular meaning when used together, or which someone uses on a particular occasion: We don’t really have a phrase for ‘bon appétit’ in English. | Politicians keep using the phrase ‘family values’. | an Italian phrase book
   ▪ expression a fixed phrase which is used in a language and has a particular meaning: He uses a lot of obscure expressions that I don’t really understand. | What does the expression ‘wage slavery’ mean?
   ▪ buzzword /ˈbʌzwɜːd $ -wɜːrd/ a word or group of words that people in a particular type of work or activity have started using a lot because they think it is important: E-learning is the buzzword in educational publishing at the moment. | For anthropologists, ethnodiversity has been a buzzword for quite a while.
   ▪ idiom /ˈɪdiəm/ a group of words that has a special meaning which you cannot guess from the meanings of each separate word: ‘Full of beans’ is an idiom which means feeling lively and energetic.
   ▪ cliché /ˈkliːʃeɪ $ kliːˈʃeɪ/ a group of words that is used so often that it seems rather boring, annoying, or silly: It’s a bit of a cliché, but good communication skills are the key to success. | the old movie cliché ‘we can’t go on meeting like this’
   ▪ slang very informal words used especially by a particular group of people such as young people, criminals, or soldiers: Grass is slang for marijuana. | prison slang | army slang
   ▪ jargon words and phrases used in a particular profession or by a particular group of people, which are difficult for other people to understand – often used to show disapproval: The instructions were full of technical jargon. | complicated legal jargon