Word: firestone
Part of speech: Noun
Syllables: fire
stone
Definition: Iron pyrites, formerly used for striking fire.
Morphemes:
Affix: fire
Language: en
PoS: Noun
Meaning: The elements necessary to start a fire.
Affix: stone
Language: en
PoS: Verb
Meaning: To pelt with stones, especially to kill by pelting with stones.