deed poll vs deed of conveyance

deed poll and deed of conveyance both are nouns.

Word	Noun	Adjective	Verb	Adverb
deed poll	Yes	No	No	No
deed of conveyance	Yes	No	No	No

As nouns, deed of conveyance is a hypernym of deed poll; that is, deed of conveyance is a word with a broader meaning than deed poll:

deed poll: a deed made and executed by only one party
deed of conveyance: a legal document signed and sealed and delivered to effect a transfer of property and to show the legal right to possess it

Other hypernyms of deed poll include deed, title.

deed poll (noun)	deed of conveyance (noun)
a deed made and executed by only one party	a legal document signed and sealed and delivered to effect a transfer of property and to show the legal right to possess it