IMO stands for In My Opinion, used in online and texting contexts to soften an opinion. Not concerning, just internet vocabulary. If your kid uses it constantly, ask them where they first heard it, not to police their speech but to understand which online community they are in. Most slang of this kind moves through TikTok and group chats, so seeing it in your child's vocabulary just means they are plugged into normal teen internet culture.
IMO
In My Opinion.
ˌaɪ.emˈoʊDocumented since 1980s1980sGen Xhistorical318 viewsLast reviewed Jun 29, 2026＋ Add a definition
Etymology timeline
Born ~1980 · no dated citations yetGen X eraSee decade cohort →
Seen in the wild
Firecrawl: International Maritime Organization - Wikipedia
Observer status is granted to qualified NGOs.[\[2\]](https://en.wikipedia.org/wiki/International_Maritime_Organization#cite_note-IntroductionUKS-2) IMO is supported by a permanent secretariat of employees who are repr…
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Firecrawl: Imo.im - Wikipedia
02. [1](https://en.wikipedia.org/wiki/Imo.im#cite_ref-technobuffalo_2-0) [2](https://en.wikipedia.org/wiki/Imo.im#cite_ref-technobuffalo_2-1)["Imo Messenger: One of the Best Ways to Stay Connected"](https://www.techno…
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Firecrawl: International Mathematical Olympiad - Wikipedia
The problems given in the IMO are largely designed to require creativity and the ability to solve problems quickly.
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Definitions
Global
#1·Apr 26, 2026Global
In My Opinion. Used to soften an opinion or signal it's subjective.
"That's the worst remix of 2025 imo."
Origin: Internet acronym from at least the 1980s; standard usage on Usenet and BBS.
For parents
IMO stands for In My Opinion, used in online and texting contexts to soften an opinion. Not concerning, just internet vocabulary. If your kid uses it constantly, ask them where they first heard it, not to police their speech but to understand which online community they are in. Most slang of this kind moves through TikTok and group chats, so seeing it in your child's vocabulary just means they are plugged into normal teen internet culture.
For ESL learners
IMO is an internet and texting initialism for "In My Opinion," used to soften a stated view. Use in informal writing. Formal equivalent: spell out "In my opinion." Common non-native mistake: confusing with similar acronyms (IMHO - In My Humble Opinion). IMO is more confident; IMHO adds humility. Both function as discourse markers softening assertions. Read or listen to the word in context several times before trying it yourself; the right register is harder to learn than the dictionary meaning.
Cluster: hedging
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Global
#2·May 3, 2026Global
SS Imo, a 1889 ship involved in the Halifax Explosion
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Global
#3·May 3, 2026Global
Icelandic Meteorological Office
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Global
#4·May 3, 2026Global
International Maritime Organization
Heard in the wild
“Observer status is granted to qualified NGOs.[\[2\]](https://en.wikipedia.org/wiki/International_Maritime_Organization#cite_note-IntroductionUKS-2) IMO is supported by a permanent secretariat of employees who are representative of the organization's members.”
“02. [1](https://en.wikipedia.org/wiki/Imo.im#cite_ref-technobuffalo_2-0) [2](https://en.wikipedia.org/wiki/Imo.im#cite_ref-technobuffalo_2-1)["Imo Messenger: One of the Best Ways to Stay Connected"](https://www.technobuffalo.com/imo-messenger-app-of-the-week).”
“The problems given in the IMO are largely designed to require creativity and the ability to solve problems quickly.”
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Global
#5·May 3, 2026Global
International Meteorological Organization
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Global
#6·May 3, 2026Global
IMO number, a unique identity number issued to seacraft (pattern "1234567")
Origin: Abbreviation of English Im b o ngu.
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For specific readers
Why is this section here?
Slang is read by different audiences for very different reasons. The For parents view re-explains the term in plain, non-judgemental language so a caregiver can understand what their child means without needing the surrounding subculture. The For English learners view focuses on register (when it's safe to use), formal alternatives, and common mistakes — what a textbook won't teach you.
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🌐About Internet & Memes slang
Viral internet speak — memes, ratios, main-character moments, and the algospeak of every platform from Twitter to Reddit to TikTok comment sections.
See all Internet & Memes slang on Slangora.
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Other words near "IMO" (I)
I'm in this photo and I don't like itimmaimmersionimmieimmunizationI'm not being funnyimoutoimpact aidimpact areaimpactedimpaired drivingImpala
Browse all slang words starting with I.
Related terms
People also read
Semantically related
- IMHO80%
In my humble opinion. A polite framing for a personal view that the speaker wants to mark as subjective rather than factual. The "humble" is often tongue-in-cheek — strong opinions are frequently introduced with IMHO precisely because the writer knows they aren't humble at all. Often weakened to "IMO" when the speaker drops even the pretence.
- FWIW63%
For what it's worth. A softener placed before an opinion or observation to flag that the speaker knows the comment may not be useful or authoritative, but is offering it anyway. Often signals humility, occasionally signals passive-aggression depending on tone.
- stance60%
One's opinion or point of view.
- hear me out59%
Used to allude to an unspoken opinion.
- I don't know58%
Used to indicate that one is speculating (often used sarcastically when stating the obvious).