Which to use
“til” is a preposition and “tos” is a noun - they look or sound alike but fill different roles in a sentence.
- #28,972
- “til” frequency rank
- #9,550
- “tos” frequency rank
- 38522
- confusion score
Side-by-Side Comparison
| Feature | til | tos |
|---|---|---|
| Definition | Hasta. | Contracción espasmódica repentina y a veces repetitiva de la cavidad torácica que resulta en una liberación violenta del aire de los pulmones produciendo un sonido característico. |
Where the eye mixes til and tos
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Visual trap between til and tos
These two trip readers on the page rather than in the ear: til is /tɪl/ while tos is [ˈt̪os]. 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 (preposition vs noun), which is usually the fastest check. Our composite confusion score for this pair is 38522, derived from the frequency rank of both members and their visual similarity.
til is recorded at frequency rank #28,972, classified as aprep, pronounced /tɪl/. tos is at rank #9,550, tagged as anoun, pronounced [ˈt̪os].
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 38522, this pair ranks #169,553 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of til vs tos
Shared letters: t. Private to "til": il. Private to "tos": os.
"til" · 3 letters · shape CVC · "tos" · 3 letters · shape CVC
Frequently Asked Questions
Can "til" and "tos" be used interchangeably?
Which is more common, "til" or "tos"?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "til" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "tos" - compare definitions side by side with the headword page. Word entry
- This pair ranks #169,553 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "til" and "tos" also get mixed up with nearby pairs, the highest-scored neighbour is "tale vs til". Nearby pair
Confusion rank #169,553 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.