けいしょう
敬称
honorific title; honorific term of address
N5Common wordNoun
Noun
honorific title•honorific term of address
Example Sentences
人にもよるけど、女性に対して「サー」（男性への敬称）を使うことは、とても失礼なことです。
It depends on the person, but using "sir" for women (a title of honour for men) is very rude.