Word: killer
Part of speech: Noun
Syllables: kill
er
Definition: Something that is so far ahead of its competition that it effectively kills off that competition.
Morphemes:
Affix: kill
Language: en
PoS: Verb
Meaning: To overpower, overwhelm or defeat.
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.