WordNet: knocker

a person who knocks (as seeking to gain admittance); "open the door and see who the knocker is"

• hypernym individual, mortal, person, somebody, someone, soul

knocker

• (englanti) knock (derivationally related)
• (suomi) ovelta ovelle myyjä (synonyymi)

• (suomi) oveen kolkuttaja (synonyymi)