convenience vs mod con

convenience and mod con both are nouns.

Word	Noun	Adjective	Verb	Adverb
convenience	Yes	No	No	No
mod con	Yes	No	No	No

As nouns, mod con is a hyponym of convenience; that is, mod con is a word with a more specific, narrower meaning than convenience:

convenience: a device or control that is very useful for a particular job
mod con: modern convenience; the appliances and conveniences characteristic of a modern house

Other hyponyms of convenience include gadgetry, gimbal, injector.

convenience (noun)	mod con (noun)
a device or control that is very useful for a particular job	modern convenience; the appliances and conveniences characteristic of a modern house
a toilet that is available to the public
the quality of being useful and convenient
the state of being suitable or opportune