appliance vs gadget

appliance and gadget both are nouns.

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

As nouns, appliance and gadget are synonyms defined as:

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

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

appliance (noun)	gadget (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