Tide (noun)

The regular rise and fall of the level of the ocean's water caused by the gravitational pull of the moon and the sun.

Origin:

From the old english word "tīd" meaning a specific time of day, tide refers to the regular rise and fall of the level of the ocean"s water caused by the gravitational pull of the moon and the sun.

Examples:

1. The tide was high, making it difficult to walk along the shore.
2. The tide went out, revealing a wide expanse of sand.
3. The fisherman knew to come at low tide to catch the best seafood.
4. The swimmers had to be careful not to get caught in the tide's strong currents.
5. The tide was coming in, and the water was rising quickly.