lavage vs swim

To wash a hollow organ 

To immerse in water to make the lighter parts float. 

To move around freely because of excess space. 

To move through the water, without touching the bottom; to propel oneself in water by natural means. 

To glide along with a waving motion. 

My head was swimming after drinking two bottles of cheap wine. 

To cause to swim. 

To traverse (a specific body of water, or a specific distance) by swimming; or, to utilize a specific swimming stroke; or, to compete in a specific swimming event. 

To be dizzy or vertiginous; have a giddy sensation; to have, or appear to have, a whirling motion. 

To be overflowed or drenched. 

To become immersed in, or as if in, or flooded with, or as if with, a liquid 

To test (a suspected witch) by throwing into a river; those who floated rather than sinking were deemed to be witches.