imo

from WordNet (r) 3.0 (2006)

IMO
    n 1: the United Nations agency concerned with international
         maritime activities [syn: {International Maritime
         Organization}, {IMO}]

from The Collaborative International Dictionary of English v.0.48

Thar \Thar\, n. (Zool.)
   A goatlike animal ({Capra Jemlaica}) native of the Himalayas.
   It has small, flattened horns, curved directly backward. The
   hair of the neck, shoulders, and chest of the male is very
   long, reaching to the knees. Called also {serow}, and {imo}.
   [Written also {thaar}, and {tahr}.]
   [1913 Webster]

from The Free On-line Dictionary of Computing (8 July 2008)

IMHO
IMAO
IMNSHO
IMO

   <chat> (From SF fandom via {Usenet}) In My Humble Opinion.
   Also seen in variant forms such as IMO, IMNSHO (In My
   Not-So-Humble Opinion) and IMAO (In My Arrogant Opinion).

   [{Jargon File}]

   (1998-09-24)

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

IMO
       In My Opinion (slang, Usenet, IRC)

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