/ Dictionary / Index S subtreasury: Meaning and Definition of Find definitions for: sub•treas•ur•y Pronunciation: (sub-trezh'u-rē, sub'trezh"-), [key] — pl. -ur•ies. a subordinate or branch treasury. (formerly) any of the branch treasuries maintained by the U.S. government. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: subtreasury (Thesaurus) subtrahend subtropical Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language