engagement vs Battle of Britain

engagement and Battle of Britain both are nouns.

Word	Noun	Adjective	Verb	Adverb
engagement	Yes	No	No	No
Battle of Britain	Yes	No	No	No

engagement (noun)	Battle of Britain (noun)
the act of sharing in the activities of a group	the prolonged bombardment of British cities by the German Luftwaffe during World War II and the aerial combat that accompanied it
a hostile meeting of opposing military forces in the course of a war
the act of giving someone a job
employment for performers or performing groups that lasts for a limited period of time
a mutual promise to marry
contact by fitting together
a meeting arranged in advance