1. (固定在門(mén)上供敲門(mén)用的)門(mén)環(huán) A knocker is a piece of metal on the front door of a building, which you use to hit the door in order to attract the attention of the people inside.
knocker英英釋義
noun
1. a device (usually metal and ornamental) attached by a hinge to a door
Synonym: doorknockerrapper
2. either of two soft fleshy milk-secreting glandular organs on the chest of a woman
Synonym: breastbosomboobtittitty
3. one who disparages or belittles the worth of something
Synonym: detractordisparagerdepreciator
4. a person who knocks (as seeking to gain admittance)
e.g. open the door and see who the knocker is
5. (Yiddish) a big shot who knows it and acts that way a boastful immoderate person