tassvsthisWhich spelling fits?

Quick tell: tass is a noun, this is a determiner, so they fill different roles in a sentence.

Which to use

“tass” is a noun and “this” is a determiner - they look or sound alike but fill different roles in a sentence.

#46,807
“tass” frequency rank
#15
“this” frequency rank
46822
confusion score

Side-by-Side Comparison

Feature tass this
Definition A heap, pile. The (thing) here (used in indicating something or someone nearby).

Where the eye mixes tass and this

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. tass (CVCC) and this (CCVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

4 ch
tass
4 ch
this

Why the eye confuses tass with this

These two trip readers on the page rather than in the ear: tass is /tæs/ while this is /ðɪs/. 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 (noun vs determiner), which is usually the fastest check. Our composite confusion score for this pair is 46822, derived from the frequency rank of both members and their visual similarity.

tass is recorded at frequency rank #46,807, classified as anoun, pronounced /tæs/. this is at rank #15, tagged as adet, pronounced /ðɪs/.

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 46822, this pair ranks #208,136 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of tass vs this

Shared letters: st. Private to "tass": a. Private to "this": hi.

"tass" · 4 letters · shape CVCC  ·  "this" · 4 letters · shape CCVC

Known mistypes of this pair

  • tass ← atss · tas · tsas · ttass
  • this ← htis · thhis · thiss · thsi · tihs · tthis

Frequently Asked Questions

Is swapping "tass" for "this" ever safe?
No - they are not even the same part of speech. "tass" is a noun and "this" a determiner, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "tass" vs "this" - which ranks higher?
"this" is the more common of the two: it sits at frequency rank #15 in our English list, against #46,807 for "tass". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "tass" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "this" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #208,136 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "tass" and "this" also get mixed up with nearby pairs, the highest-scored neighbour is "Taf vs tass". 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 #208,136 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list