tidal flow vs eagre

tidal flow and eagre both are nouns.

Word	Noun	Adjective	Verb	Adverb
tidal flow	Yes	No	No	No
eagre	Yes	No	No	No

As nouns, eagre is a hyponym of tidal flow; that is, eagre is a word with a more specific, narrower meaning than tidal flow:

tidal flow: the water current caused by the tides
eagre: a high wave (often dangerous) caused by tidal flow (as by colliding tidal currents or in a narrow estuary)

Other hyponyms of tidal flow include aegir, bore, eager, tidal bore.

tidal flow (noun)	eagre (noun)
the water current caused by the tides	a high wave (often dangerous) caused by tidal flow (as by colliding tidal currents or in a narrow estuary)