Word: knocker
Part of speech: Noun
Syllables: knock
er
Definition: A person who knocks.
Morphemes:
Affix: knock
Language: en
PoS: Verb
Meaning: To rap one's knuckles against something, especially wood.
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.