Which to use
“obligate” and “oblige” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #48,936
- “obligate” frequency rank
- #25,505
- “oblige” frequency rank
- 74441
- confusion score
Side-by-Side Comparison
| Feature | obligate | oblige |
|---|---|---|
| Definition | To bind, compel, constrain, or oblige by a social, legal, or moral tie. | To constrain someone by force or by social, moral or legal means. |
Where the eye mixes obligate and oblige
Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. obligate runs 8 letters (VCCVCVCV) against oblige's 6 (VCCVCV) - the length gap alone is often enough to separate them once you know to check it.
Visual trap between obligate and oblige
A purely visual mix-up. obligate (/ˈɒb.lɪˌɡeɪt/) and oblige (/əˈblaɪd͡ʒ/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 2 letter(s) in length. Our composite confusion score for this pair is 74441, derived from the frequency rank of both members and their visual similarity.
obligate is recorded at frequency rank #48,936, classified as averb, pronounced /ˈɒb.lɪˌɡeɪt/. oblige is at rank #25,505, tagged as averb, pronounced /əˈblaɪd͡ʒ/.
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 74441, this pair ranks #36,308 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of obligate vs oblige
Shared letters: begilo. Private to "obligate": at. Private to "oblige": -.
"obligate" · 8 letters · shape VCCVCVCV · "oblige" · 6 letters · shape VCCVCV
Known mistypes of this pair
Frequently Asked Questions
Can "obligate" and "oblige" be used interchangeably?
Which is more common, "obligate" or "oblige"?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "obligate" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "oblige" - compare definitions side by side with the headword page. Word entry
- This pair ranks #36,308 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "obligate" and "oblige" also get mixed up with nearby pairs, the highest-scored neighbour is "obligate vs obligated". 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 #36,308 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.