British spelling vs gynaecology

British spelling and gynaecology both are nouns.

Word	Noun	Adjective	Verb	Adverb
British spelling	Yes	No	No	No
gynaecology	Yes	No	No	No

British spelling (noun)	gynaecology (noun)
English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')	the branch of medicine that deals with the diseases and hygiene of women