Dive'1, v. i.
v. i. [imp. & p. p. DIVED; p. pr. & vb. n. DIVING.] [A-S. dūfan, dāfan, to dive, immerge; Icel. dífa (subigere), to compress, immerge, dífing, immersion. Cf. DIP.]
Sense 1. To descend or plunge into water, as an animal, head first; to thrust the body under, or very deeply into, water, or other fluid; as, in the pearl fishery, men are employed to dive for shells.
Sense 2. To study thoroughly or very profoundly; to be absorbed, as in a business or profession. “To dive into antiquity.” South.
Sense 3. To plunge into any business or condition, so as to be thoroughly engaged in it. Shak.
Sense 4. To sink; to penetrate.
“Dive, thoughts, down to my soul.” Shak.