Word: knocker
Part of speech: Noun
Syllables: knock
er
Definition: A mechanical device in a pinball table that produces a loud percussive noise.
Morphemes:
Affix: knock
Language: en
PoS: Noun
Meaning: An abrupt rapping sound, as from an impact of a hard object against 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.