Which to use
“interpolation” and “interrogation” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #34,941
- “interpolation” frequency rank
- #13,738
- “interrogation” frequency rank
- 48679
- confusion score
Side-by-Side Comparison
| Feature | interpolation | interrogation |
|---|---|---|
| Definition | An abrupt change in elements, with continuation of the first idea. | The act of interrogating or questioning; an examination by questions; an inquiry. |
Where the spellings diverge
Shared letters are muted; the letters that actually set interpolation and interrogation apart are highlighted. They share 11 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
interpolation and interrogation form a confusable pair in the English index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They share most of their letters but differ in 2 positions - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 48679, derived from the frequency rank of both members and their visual similarity.
interpolation is recorded at frequency rank #34,941, classified as anoun, pronounced /ɪnˌtɜː.pəˈleɪʃən/. interrogation is at rank #13,738, tagged as anoun, pronounced /ɪnˌteɹ.əˈɡeɪ.ʃən/.
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 48679, this pair ranks #190,766 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Frequency comparison
Frequently Asked Questions
Can "interpolation" and "interrogation" be used interchangeably?
Remembering interpolation vs interrogation
The fastest way to pick the right one every time.
- Read both glosses above and match the meaning you intend, only context separates this pair.
- See each word in full, definition, IPA, etymology and its other confusables. Full “interpolation” entry
- Browse more pairs most likely to be confused. Most confusable