Word: runaway
Part of speech: Noun
Syllables: run
a
way
Definition: A vehicle (especially, a train) that is out of control.
Morphemes:
Affix: run
Language: en
PoS: Verb
Meaning: To drive or force; to cause, or permit, to be driven.
Affix: away
Language: en
PoS: Adjective
Meaning: Out.