What is the meaning of tide?

noun

• 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. )
  • usage: "a rising tide of popular interest"
• There are usually two high and two low tides each day.
  • synonyms: lunar time period

verb

• Rise or move forward.
  • usage: "surging waves"
  • synonyms: surge
• Cause to float with the tide.
• Be carried with the tide. .