Meaning of subprincipal

sub•prin•ci•pal

Pronunciation: (sub-prin'su-pul, sub'prin"-), [key]
— n.
  1. an assistant or deputy principal.
  2. (in an organ) a subbass of the open diapason class.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.