Which to use
“probing” is an adjective and “prolong” is a verb - they look or sound alike but fill different roles in a sentence.
- #22,181
- “probing” frequency rank
- #22,183
- “prolong” frequency rank
- 44364
- confusion score
Side-by-Side Comparison
| Feature | probing | prolong |
|---|---|---|
| Definition | That investigates or explores deeply; that attempts to elicit information that is concealed. | To extend in space or length. |
Letter map: probing vs prolong
Shared letters muted; letters that set probing and prolong apart highlighted. Shared run: 5.
Grammar separator: probing vs prolong
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: probing is anadjective and prolongaverb. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 44364, derived from the frequency rank of both members and their visual similarity.
probing is recorded at frequency rank #22,181, classified as anadj. prolong is at rank #22,183, tagged as averb, pronounced /pɹəʊˈlɒŋ/.
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 44364, this pair ranks #231,266 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of probing vs prolong
Shared letters: gnopr. Private to "probing": bi. Private to "prolong": l.
"probing" · 7 letters · shape CCVCVCC · "prolong" · 7 letters · shape CCVCVCC
Known mistypes of this pair
Frequently Asked Questions
Can "probing" and "prolong" be used interchangeably?
In ordinary English text, does "probing" or "prolong" show up more?
What to do next
Pair "probing" vs "prolong" is on the table, pick a follow-up below.
- Full dictionary entry for "probing" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "prolong" - compare definitions side by side with the headword page. Word entry
- This pair ranks #231,266 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "probing" and "prolong" also get mixed up with nearby pairs, the highest-scored neighbour is "prolong vs prowling". 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 #231,266 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.