What part of speech is freewheel?

Freewheel can be categorized as a noun and a verb.

Parts of speech

1. freewheel is a verb, present, 1st person singular of freewheel (infinitive).
2. freewheel is a verb (infinitive).
3. freewheel is a noun, singular of freewheels.

Verb
freewheel - live unhurriedly, irresponsibly, or freely; "My son drifted around for years in California before going to law school"
freewheel - coast in a vehicle using the freewheel
Noun
freewheel - a clutch (as on the rear wheel of a bicycle) that allows wheels to turn freely (as in coasting)