tide vs lunar time period

tide and lunar time period both are nouns.

Word	Noun	Adjective	Verb	Adverb
tide	Yes	No	Yes	No
lunar time period	Yes	No	No	No

As nouns, tide and lunar time period are synonyms defined as:

tide and lunar time period: there are usually two high and two low tides each day

tide (noun)	lunar time period (noun)
the periodic rise and fall of the sea level under the gravitational pull of the moon	there are usually two high and two low tides each day
something that may increase or decrease (like the tides of the sea)
there are usually two high and two low tides each day