GMAT Vocabulary Flash Cards @ englishpdf.com and englishteststore.com File 629 sublingual (adj) Situated beneath the tongue submarine (adj) Existing, done, or operating beneath the surface of the sea submerge (v) To place or plunge under water submergence (n) The act of submerging submersible (adj) Capable of being put underwater submersion (n) The act of submerging submission (n) A yielding to the power or authority of another submittal (n) The act of submitting