ward vs infirmary

ward and infirmary both are nouns.

Word	Noun	Adjective	Verb	Adverb
ward	Yes	No	Yes	No
infirmary	Yes	No	No	No

ward (noun)	infirmary (noun)
block forming a division of a hospital (or a suite of rooms) shared by patients who need a similar kind of care	a health facility where patients receive treatment
a division of a prison (usually consisting of several cells)
a district into which a city or town is divided for the purpose of administration and elections
a person who is under the protection or in the custody of another

ward (verb)	infirmary (verb)
watch over or shield from danger or harm; protect