submerge

From Wiktionary

Pronunciation[change]

Verb[change]

Plain form
submerge

Third-person singular
submerges

Past tense
submerged

Past participle
submerged

Present participle
submerging

  1. Someone submerges something when they make the thing sink; they make it go down into water so that the water is covering it.
    He submerged his arm in the lake to try to clean the mud off it.
  2. Something submerges when it sinks; it goes down into the water so that the water is covering it.
    The boat submerged completely, but then part of it came back up out of the water.