rising tide vs tide

rising tide and tide both are nouns.

Word	Noun	Adjective	Verb	Adverb
rising tide	Yes	No	No	No
tide	Yes	No	Yes	No

As nouns, tide is a hypernym of rising tide; that is, tide is a word with a broader meaning than rising tide:

rising tide: the occurrence of incoming water (between a low tide and the following high tide)
tide: the periodic rise and fall of the sea level under the gravitational pull of the moon

rising tide (noun)	tide (noun)
the occurrence of incoming water (between a low tide and the following high tide)	the periodic rise and fall of the sea level under the gravitational pull of the moon
	something that may increase or decrease (like the tides of the sea)
	there are usually two high and two low tides each day