What words to express ‘swim’ in Japanese?

泳およぐ、泳およぎに行いく、浮うかぶ、ぷかぷかする

くらくらする

We can distinguish six meanings of the word ‘swim’ according to the Oxford Learner’s Dictionaries.
Japanese uses different expressions for each meaning.

​1. (of a person or animal) to move through water by moving your arms and legs, without touching the bottom

3. to move through or across water

5. to seem to be moving around, especially when you are ill or drunk

the Oxford Learner’s Dictionaries

We can say 泳およぐ.

2. go swimming; to spend time swimming for pleasure

the Oxford Learner’s Dictionaries

We can say 泳およぎに行いく.

3. to be covered with a lot of liquid

the Oxford Learner’s Dictionaries

We can say 浮うかぶ、ぷかぷかする.

6. to feel confused and/or as if everything is turning round and round

the Oxford Learner’s Dictionaries

We can say くらくらする.


Advanced Tips

Meaning No.5 can also be said ゆらゆら or 揺ゆれる.
For example,

The pages swam before her eyes, she seems almost asleep.

ページが彼女かのじょの目めの前まえを泳およいで、彼女かのじょはほとんど眠ねむっているようです。

ページが彼女かのじょの目めの前まえでゆらゆらとして、彼女かのじょはほとんど眠ねむっているようです。

ぷかぷか has three meanings in Japanese.

  1. the sound of incessant smoking of cigarettes
  2. the situations where a light thing floats on water
  3. sound of blowing a trumpet or flute, etc.

The meaning of 1. and 3. can also be used when you want to describe the situation where someone does them.

We say くらくらする when we feel dizzy and we might collapse.