blind date vs appointment

blind date and appointment both are nouns.

Word	Noun	Adjective	Verb	Adverb
blind date	Yes	No	No	No
appointment	Yes	No	No	No

As nouns, appointment is a hypernym of blind date; that is, appointment is a word with a broader meaning than blind date:

Other hypernyms of blind date include date, engagement.

blind date (noun)	appointment (noun)
a date with a stranger	the act of putting a person into a non-elective position
a participant in a blind date (someone you meet for the first time when you have a date with them)	the job to which you are (or hope to be) appointed
	(law) the act of disposing of property by virtue of the power of appointment
	(usually in the plural) furnishings and equipment (especially for a ship or hotel)
	a meeting arranged in advance
	a person who is appointed to a job or position