tenthvstontoWhich spelling fits?

Quick tell: tenth is a adjective, tonto is a noun, so they fill different roles in a sentence.

Which to use

“tenth” is an adjective and “tonto” is a noun - they look or sound alike but fill different roles in a sentence.

#8,097
“tenth” frequency rank
#43,424
“tonto” frequency rank
51521
confusion score

Side-by-Side Comparison

Feature tenth tonto
Definition The ordinal numeral form of ten; next in order after that which is ninth. Synonym of idiot: someone who is foolish or stupid.

Letter map: tenth vs tonto

Shared letters muted; letters that set tenth and tonto apart highlighted. Shared run: 3. tenth (CVCCC) and tonto (CVCCV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

5 ch
tenth
5 ch
tonto

Grammar separator: tenth vs tonto

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: tenth is anadjective and tontoanoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 51521, derived from the frequency rank of both members and their visual similarity.

tenth is recorded at frequency rank #8,097, classified as anadj, pronounced /tɛnθ/. tonto is at rank #43,424, tagged as anoun.

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 51521, this pair ranks #164,768 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of tenth vs tonto

Shared letters: nt. Private to "tenth": eh. Private to "tonto": o.

"tenth" · 5 letters · shape CVCCC  ·  "tonto" · 5 letters · shape CVCCV

Known mistypes of this pair

  • tenth ← etnth · tenht · tennth · tenthh · tentth · tetnh · tneth · ttenth
  • tonto ← otnto · tnoto · tonnto · tonot · tontto · totno · ttonto

Frequently Asked Questions

Is swapping "tenth" for "tonto" ever safe?
No - they are not even the same part of speech. "tenth" is an adjective and "tonto" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "tenth" vs "tonto" - which ranks higher?
"tenth" is the more common of the two: it sits at frequency rank #8,097 in our English list, against #43,424 for "tonto". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Done with this confusable. These links stay specific to "tenth" and "tonto".

  • Full dictionary entry for "tenth" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "tonto" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #164,768 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "tenth" and "tonto" also get mixed up with nearby pairs, the highest-scored neighbour is "tonto vs Toth". 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 #164,768 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