never-never vs installment plan

never-never and installment plan both are nouns.

Word	Noun	Adjective	Verb	Adverb
never-never	Yes	No	No	No
installment plan	Yes	No	No	No

As nouns, installment plan is a hypernym of never-never; that is, installment plan is a word with a broader meaning than never-never:

Other hypernyms of never-never include installment buying, time plan.

never-never (noun)	installment plan (noun)
installment plan	a system for paying for goods by installments