Which to use
“that” is a conjunction and “THC” is a noun - they look or sound alike but fill different roles in a sentence.
- #5,506
- “that” frequency rank
- #43,694
- “THC” frequency rank
- 49200
- confusion score
Side-by-Side Comparison
| Feature | that | THC |
|---|---|---|
| Definition | Que. | Abréviation de tétrahydrocannabinol. |
Where the eye mixes that and THC
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses that with THC
These two trip readers on the page rather than in the ear: that is \ðət\ while THC is \te.aʃ.se\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (conjunction vs noun), which is usually the fastest check. Our composite confusion score for this pair is 49200, derived from the frequency rank of both members and their visual similarity.
that is recorded at frequency rank #5,506, classified as aconj, pronounced \ðət\. THC is at rank #43,694, tagged as anoun, pronounced \te.aʃ.se\.
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 49200, this pair ranks #172,614 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of that vs THC
Shared letters: ht. Private to "that": a. Private to "THC": c.
"that" · 4 letters · shape CCVC · "THC" · 3 letters · shape CCC
Known mistypes of this pair
- that ← htat · taht · thatt · thhat · thta · tthat
Frequently Asked Questions
Do "that" and "THC" mean the same thing in a sentence?
Which is more common, "that" or "THC"?
After this comparison
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "that" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "THC" - compare definitions side by side with the headword page. Word entry
- This pair ranks #172,614 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "that" and "THC" also get mixed up with nearby pairs, the highest-scored neighbour is "THC vs tif". 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 #172,614 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.