Word: rapper
Part of speech: Noun
Syllables: rap
per
Definition: A mechanical, or later electric, signalling device formerly used in the mines of north-eastern England to signal to the engineman that the cages carrying men or coals up and down the shaft were ready to be raised or lowered.
Morphemes:
Affix: rap
Language: en
PoS: Noun
Meaning: A sharp blow with something hard.
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.