plural form vs hiccough

plural form and hiccough both are nouns.

Word	Noun	Adjective	Verb	Adverb
plural form	Yes	No	No	No
hiccough	Yes	No	Yes	No

plural form (noun)	hiccough (noun)
the form of a word that is used to denote more than one	(usually plural) the state of having reflex spasms of the diaphragm accompanied by a rapid closure of the glottis producing an audible sound; sometimes a symptom of indigestion

plural form (verb)	hiccough (verb)
	breathe spasmodically, and make a sound