To submerse is to go below the surface of water. When you watch a seabird submerse, you see it dive completely under water, probably so that it can catch a fish.

You can use the verb submerse in much the same way you'd use submerge, to mean "sink or dive under the surface of the water." The meaning of submerse makes sense when you know that a submersible is a small underwater vessel, similar to a submarine. All of these words have the Latin prefix sub- in common, which means "under." Merse comes from the Latin verb "to plunge," mergere .

Definitions of submerse
  1. verb
    put under water
    synonyms: submerge
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    type of:
    immerse, plunge
    thrust or throw into
  2. verb
    sink below the surface; go under or as if under water
    synonyms: submerge
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    plunge into water
    dive so that one hits the water with one's belly
    dive into the water bending the body at the waist at a right angle, like a jackknife
    type of:
    go down, go under, settle, sink
    go under, "The raft sank and its occupants drowned"
Word Family