buzzword
noun [ C ] uk/ˈbʌz.wɜːd/ us/ˈbʌz.wɝːd/
（尤指在电视或报纸上频繁使用的）时髦词语
a word or expression from a particular subject area that has become fashionable by being used a lot, especially on television and in the newspapers
"Diversity" is the new buzzword in education. “多元化”是教育领域里新的时髦词语。