crevasse vs. crevice

crevasse

noun

  1. a fissure, or deep cleft, in glacial ice, the earth's surface, etc.
  2. a breach in an embankment or levee.

verb (used with object)

crevassed, crevassing.
  1. to fissure with crevasses.

crevice

noun

  1. a crack forming an opening; cleft; rift; fissure.