tervstoTell them apart

Quick tell: ter is a verb, to is a num, so they fill different roles in a sentence.

Which to use

“ter” is a verb and “to” is a num - they look or sound alike but fill different roles in a sentence.

#15,973
“ter” frequency rank
#1,128
“to” frequency rank
17101
confusion score

Side-by-Side Comparison

Feature ter to
Definition Tener. Dos.

Where the eye mixes ter and to

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
ter
2 ch
to

Look-alike desk: ter vs to

These two trip readers on the page rather than in the ear: ter is [ˈt̪eɾ] while to is [toːˀ]. 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 (verb vs num), which is usually the fastest check. Our composite confusion score for this pair is 17101, derived from the frequency rank of both members and their visual similarity.

ter is recorded at frequency rank #15,973, classified as averb, pronounced [ˈt̪eɾ]. to is at rank #1,128, tagged as anum, pronounced [toːˀ].

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 17101, this pair ranks #273,548 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of ter vs to

Shared letters: t. Private to "ter": er. Private to "to": o.

"ter" · 3 letters · shape CVC  ·  "to" · 2 letters · shape CV

Frequently Asked Questions

Is swapping "ter" for "to" ever safe?
No - they are not even the same part of speech. "ter" is a verb and "to" a num, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "ter" or "to"?
"to" is the more common of the two: it sits at frequency rank #1,128 in our Spanish list, against #15,973 for "ter". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

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 "ter" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "to" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #273,548 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "ter" and "to" also get mixed up with nearby pairs, the highest-scored neighbour is "ter vs tul". Nearby pair

Confusion rank #273,548 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list