flection vs departure

flection and departure both are nouns.

Word	Noun	Adjective	Verb	Adverb
flection	Yes	No	No	No
departure	Yes	No	No	No

As nouns, departure is a hypernym of flection; that is, departure is a word with a broader meaning than flection:

Other hypernyms of flection include deviation, difference, divergence.

flection (noun)	departure (noun)
deviation from a straight or normal course	the act of departing
the state of being flexed (as of a joint)	euphemistic expressions for death
	a variation that deviates from the standard or norm