convenience vs gizmo

convenience and gizmo both are nouns.

Word	Noun	Adjective	Verb	Adverb
convenience	Yes	No	No	No
gizmo	Yes	No	No	No

As nouns, convenience and gizmo are synonyms defined as:

convenience and gizmo: a device or control that is very useful for a particular job

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

convenience (noun)	gizmo (noun)
a device or control that is very useful for a particular job	a device or control that is very useful for a particular job
a toilet that is available to the public	something unspecified whose name is either forgotten or not known
the quality of being useful and convenient
the state of being suitable or opportune