Word: thumper
Part of speech: Noun
Syllables: thump
er
Definition: A single-cylinder engine, especially four-stroke engines or those with large engine displacements.
Morphemes:
Affix: thump
Language: en
PoS: Noun
Meaning: The sound of such a blow; a thud.
Affix: -er
Language: en
PoS: Suffix
Meaning: Used to form diminutives.