widget vs appliance

widget and appliance both are nouns.

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

As nouns, widget and appliance are synonyms defined as:

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

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

widget (noun)	appliance (noun)
a device or control that is very useful for a particular job	durable goods for home or office use
something unspecified whose name is either forgotten or not known	a device or control that is very useful for a particular job