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  • IMO
    IMO
    abbreviation
    in my (honest/humble) opinion.
  • Imo
    Imo
    noun
    a state of SE Nigeria. Capital: Owerri. Pop:3 934 899 (2006). Area: 5100 sq km (1969 sq miles)

IMO

American  
Also imo, or IMHO

abbreviation

  1. in my (honest/humble) opinion.


IMO 1 British  

abbreviation

  1. text messaging in my opinion

  2. International Maritime Organization

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Imo 2 British  
/ ˈiːməʊ /

noun

  1. a state of SE Nigeria. Capital: Owerri. Pop:3 934 899 (2006). Area: 5100 sq km (1969 sq miles)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of IMO

First recorded in 1980–85; from its use in digital communications

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The industry has spent billions in recent years building green-friendly vessels, but the IMO plan will hurt their bottom line.

From The Wall Street Journal • Apr. 20, 2026

Mr. Trump will have to keep a close watch on the IMO if he wants these plans to succeed.

From The Wall Street Journal • Apr. 20, 2026

Even so, she has ditched Max in favour of IMO, a less popular US-made app that has encryption.

From Barron's • Mar. 23, 2026

The IMO head said he "will take this instruction very seriously", calling the measure "of particular operational importance" which showed "we value seafarers".

From Barron's • Mar. 19, 2026

According to "The Economist", the IMO believes that half of all incidents remain untold.

From Crime and Corruption by Vaknin, Samuel