appliance vs contraption

appliance and contraption both are nouns.

Word	Noun	Adjective	Verb	Adverb
appliance	Yes	No	No	No
contraption	Yes	No	No	No

As nouns, appliance and contraption are synonyms defined as:

appliance and contraption: a device or control that is very useful for a particular job

Other synonyms of appliance include contrivance, convenience, gadget, gismo, gizmo, widget.

appliance (noun)	contraption (noun)
durable goods for home or office use	a device or control that is very useful for a particular job
a device or control that is very useful for a particular job