USN
         n 1: the navy of the United States of America; the agency that
               maintains and trains and equips combat-ready naval forces
               [syn: {United States Navy}, {US Navy}, {USN}, {Navy}]

English Dictionary: USN	by the DICT Development Group
From WordNet (r) 3.0 (2006) [wn]:
Usnea n widely distributed lichens usually having a greyish or yellow pendulous freely branched thallus Synonym(s): Usnea, genus Usnea
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Ugsome \Ug"some\, a. [[?][?]. See {Ugly}.]       Ugly; offensive; loathsome. [Obs.] -- {Ug"some*ness}, n.       [Obs.] [bd]The horror and ugsomeness of death.[b8] --Latimer.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Usnic \Us"nic\, a. (Chem.)       Pertaining to, or designating, a complex acid obtained, as a       yellow crystalline substance, from certain genera of lichens       ({Usnea}, {Parmelia}, etc.).
From U.S. Gazetteer (1990) [gazetteer]:
Ucon, ID (city, FIPS 83350)       Location: 43.59416 N, 111.95543 W       Population (1990): 895 (265 housing units)       Area: 1.7 sq km (land), 0.0 sq km (water)
From The Free On-line Dictionary of Computing (15Feb98) [foldoc]:
usim          A {Motorola} {6809} simulator.   Version 0.11 by Ray P. Bellis       .          {(ftp://ftp.cns.ox.ac.uk/pub/mc6809/)}.          (1993-02-14)