Which to use
“oblige” is a verb and “online” is an adjective - they look or sound alike but fill different roles in a sentence.
- #25,505
- “oblige” frequency rank
- #659
- “online” frequency rank
- 26164
- confusion score
Side-by-Side Comparison
| Feature | oblige | online |
|---|---|---|
| Definition | To constrain someone by force or by social, moral or legal means. | Of a system: connected (generally electrically) to a larger network. |
Where the eye mixes oblige and online
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. oblige and online follow the identical consonant-vowel pattern (VCCVCV). Same shape at a glance is often the real trap, independent of shared letters.
Visual trap between oblige and online
These two trip readers on the page rather than in the ear: oblige is /əˈblaɪd͡ʒ/ while online is /ˈɒnlaɪn/. 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 (verb vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 26164, derived from the frequency rank of both members and their visual similarity.
oblige is recorded at frequency rank #25,505, classified as averb, pronounced /əˈblaɪd͡ʒ/. online is at rank #659, tagged as anadj, pronounced /ˈɒnlaɪn/.
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 26164, this pair ranks #388,729 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of oblige vs online
Shared letters: eilo. Private to "oblige": bg. Private to "online": n.
"oblige" · 6 letters · shape VCCVCV · "online" · 6 letters · shape VCCVCV
Known mistypes of this pair
Frequently Asked Questions
Do "oblige" and "online" mean the same thing in a sentence?
Frequency check: "oblige" vs "online" - which ranks higher?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "oblige" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "online" - compare definitions side by side with the headword page. Word entry
- This pair ranks #388,729 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "oblige" and "online" also get mixed up with nearby pairs, the highest-scored neighbour is "obligate vs oblige". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #388,729 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.