Word: knocker
Part of speech: Noun
Syllables: knock
er
Definition: A device, usually hinged with a striking plate, used for knocking on a door.
Morphemes:
Affix: knock
Language: en
PoS: Verb
Meaning: To strike for admittance; to rap upon, as a door.
Affix: -er
Language: en
Meaning: agent noun
Etymology Compounds: Affix: -ārius
Language: la
Decoded: -arius
PoS: Suffix
Meaning: -er; Used to form nouns denoting an agent of use, such as a dealer or artisan, from other nouns.