Do not swim here.
Hey, your eyes are shifty.
I exercise by swimming in an invisible pool on my bed.
This word consists of kanji with hiragana attached. Because the hiragana ends with an う sound, you know this word is a verb. The kanji itself means swim so the verb vocab version is to swim.
The reading is kun'yomi (see that hiragana sticking out?) but that's the reading you learned with the kanji.