tacvsthyWhat's the difference?

Quick tell: tac is a noun, thy is a pronoun, so they fill different roles in a sentence.

Which to use

“tac” is a noun and “thy” is a pronoun - they look or sound alike but fill different roles in a sentence.

#40,239
“tac” frequency rank
#47,049
“thy” frequency rank
87288
confusion score

Side-by-Side Comparison

Feature tac thy
Definition der Dübel (Fischerdübel nach dem Erfinder Artur Fischer), der Zapfen dein

Where the eye mixes tac and thy

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. tac (CVC) and thy (CCV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

3 ch
tac
3 ch
thy

Why the eye confuses tac with thy

These two trip readers on the page rather than in the ear: tac is [tak] while thy is [ðaɪ]. 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 pronoun), which is usually the fastest check. Our composite confusion score for this pair is 87288, derived from the frequency rank of both members and their visual similarity.

tac is recorded at frequency rank #40,239, classified as anoun, pronounced [tak]. thy is at rank #47,049, tagged as apron, pronounced [ðaɪ].

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 87288, this pair ranks #82,286 of 2,006,359 scored German confusable pairs - among the most confusable pairs.

Orthographic DNA of tac vs thy

Shared letters: t. Private to "tac": ac. Private to "thy": hy.

"tac" · 3 letters · shape CVC  ·  "thy" · 3 letters · shape CCV

Frequently Asked Questions

Do "tac" and "thy" mean the same thing in a sentence?
No - they are not even the same part of speech. "tac" is a noun and "thy" a pronoun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "tac" or "thy"?
"tac" is the more common of the two: it sits at frequency rank #40,239 in our German list, against #47,049 for "thy". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "tac" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "thy" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #82,286 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "tac" and "thy" also get mixed up with nearby pairs, the highest-scored neighbour is "thy vs TSE". Nearby pair

Confusion rank #82,286 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list