ojovsONGWhat's the difference?

Quick tell: ojo is a noun, ONG is an abbrev, so they fill different roles in a sentence.

Which to use

“ojo” is a noun and “ONG” is an abbrev - they look or sound alike but fill different roles in a sentence.

#1,417
“ojo” frequency rank
#8,153
“ONG” frequency rank
9570
confusion score

Side-by-Side Comparison

Feature ojo ONG
Definition Órgano sensible a la luz que permite la visión en los seres vivos. Organización no gubernamental

Where the eye mixes ojo and ONG

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
ojo
3 ch
ONG

Why the eye confuses ojo with ONG

These two trip readers on the page rather than in the ear: ojo is [ˈoxo] while ONG is [ˈõŋ]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs abbrev), which is usually the fastest check. Our composite confusion score for this pair is 9570, derived from the frequency rank of both members and their visual similarity.

ojo is recorded at frequency rank #1,417, classified as anoun, pronounced [ˈoxo]. ONG is at rank #8,153, tagged as anabbrev, pronounced [ˈõŋ].

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 9570, this pair ranks #301,530 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of ojo vs ONG

Shared letters: o. Private to "ojo": j. Private to "ONG": gn.

"ojo" · 3 letters · shape VCV  ·  "ONG" · 3 letters · shape VCC

Frequently Asked Questions

Is swapping "ojo" for "ONG" ever safe?
No - they are not even the same part of speech. "ojo" is a noun and "ONG" an abbrev, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "ojo" or "ONG" show up more?
"ojo" is the more common of the two: it sits at frequency rank #1,417 in our Spanish list, against #8,153 for "ONG". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "ojo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ONG" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #301,530 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "ojo" and "ONG" also get mixed up with nearby pairs, the highest-scored neighbour is "ome vs ONG". Nearby pair

Confusion rank #301,530 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list