"tides" in the noun sense
1. tide
the periodic rise and fall of the sea level under the gravitational pull of the moon
2. tide
something that may increase or decrease (like the tides of the sea
"a rising tide of popular interest"
3. tide, lunar time period
there are usually two high and two low tides each day
"tides" in the verb sense
1. tide, surge
rise or move forward
"surging waves"
2. tide
cause to float with the tide
3. tide
be carried with the tide
Source: WordNet® (An amazing lexical database of English)
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