1. (verb) cover completely or make imperceptible

• overwhelm
• submerge

2. (verb) be covered with or submerged in a liquid

• swim

1. (verb) cover completely or make imperceptible

• cover
• spread over

2. (verb) get rid of as if by submerging

• do away with
• eliminate
• extinguish
• get rid of

3. (verb) die from being submerged in water, getting water into the lungs, and asphyxiating

• buy the farm
• cash in one's chips
• choke
• conk
• croak
• decease
• die
• drop dead
• exit
• expire
• give-up the ghost
• go
• kick the bucket
• pass
• pass away
• perish
• pop off
• snuff it

4. (verb) kill by submerging in water

• kill

5. (verb) be covered with or submerged in a liquid

• be

1. (verb) cover completely or make imperceptible

• drown out