singular vs singularity

singular and singularity both are nouns.

Word	Noun	Adjective	Verb	Adverb
singular	Yes	Yes	No	No
singularity	Yes	No	No	No

singular (noun)	singularity (noun)
the form of a word that is used to denote a singleton	the quality of being one of a kind
	strangeness by virtue of being remarkable or unusual

singular (adjective)	singularity (adjective)
grammatical number category referring to a single item or unit
composed of one member, set, or kind
unusual or striking
being a single and separate person or thing
the single one of its kind
beyond or deviating from the usual or expected