knocker

Noun
  1. (Yiddish) a big shot who knows it and acts that way;
    A boastful immoderate person (synset 110259625)
    referred to in: yiddish - a dialect of High German including some Hebrew and other words; spoken in Europe as a vernacular by many Jews; written in the Hebrew script
    is a type of: big cheese, big deal, big enchilada, big fish, big gun, big shot, big wheel, head honcho - an important influential person
  2. A person who knocks (as seeking to gain admittance) (synset 110259458)
    "open the door and see who the knocker is"
    is a type of: individual, mortal, person, somebody, someone, soul - a human being
  3. One who disparages or belittles the worth of something (synset 110029325)
    is a type of: cynic, faultfinder - someone who is critical of the motives of others
    subtypes:
    same as: depreciator, detractor, disparager
  4. Either of two soft fleshy milk-secreting glandular organs on the chest of a woman (synset 105562038)
    is a type of: mamma, mammary gland - milk-secreting organ of female mammals
    has:
    • lactiferous duct - ducts of the mammary gland that carry milk to the nipple
    • areola, ring of color - small circular area such as that around the human nipple or an inflamed area around a pimple or insect bite
    is a part of: adult female body, woman's body - the body of an adult woman
    same as: boob, bosom, breast, tit, titty
  5. A device (usually metal and ornamental) attached by a hinge to a door (synset 103632051)
    is a type of: device - an instrumentality invented for a particular purpose
    is a part of: front door, front entrance - exterior door (at the entrance) at the front of a building
    same as: doorknocker, rapper

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