Tides rise and fall twice daily.

Meaning: This means that the sea level moves upwards and downwards twice every day.

Choice of Words: Tides are the regular rising and falling of the sea level. Rise means to move upwards. Fall means to move downwards.

Alternative Expressions

The ocean goes up and down two times each day.

Meaning: This means that the ocean level goes up and down two times every day. It's like saying, The ocean level goes up in the morning and goes down in the evening, and then goes up again at night and goes down again in the morning.

Choice of Words: The ocean is a large body of salt water. Goes up means to move upwards and goes down means to move downwards. Two times means twice, and each day means every day. When you put them together, the sentence means that the ocean level goes up and down twice every day.

The sea level rises and lowers every twelve hours.

Meaning: This means that the ocean level goes up and down two times every day. It's like saying, The ocean level goes up in the morning and goes down in the evening, and then goes up again at night and goes down again in the morning.

Choice of Words: The sea is another word for the ocean. Level means the height of the water. Rises means to move upwards and lowers means to move downwards. Every twelve hours means twice a day. When you put them together, the sentence means that the ocean level goes up and down twice every day.

Related Expressions