thevstheirWhat's the difference?

Quick tell: the is a article, their is a verb, so they fill different roles in a sentence.

Which to use

“the” is an article and “their” is a verb - they look or sound alike but fill different roles in a sentence.

#93
“the” frequency rank
#7,842
“their” frequency rank
7935
confusion score

Side-by-Side Comparison

Feature the their
Definition o (artigo definido masculino singular) futuro do verbo abair

Where the eye mixes the and their

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

3 ch
the
5 ch
their

Visual trap between the and their

These two trip readers on the page rather than in the ear: the is /ðə/ (fraco, ou antes de consoante); /ðiː/ (enfático, ou antes de vogal) while their is /he:r/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “the” sits inside “their”, and the parts of speech differ too (article vs verb), which is usually the fastest check. Our composite confusion score for this pair is 7935, derived from the frequency rank of both members and their visual similarity.

the is recorded at frequency rank #93, classified as anarticle, pronounced /ðə/ (fraco, ou antes de consoante); /ðiː/ (enfático, ou antes de vogal). their is at rank #7,842, tagged as averb, pronounced /he:r/.

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 7935, this pair ranks #66,025 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of the vs their

Shared letters: eht. Private to "the": -. Private to "their": ir.

"the" · 3 letters · shape CCV  ·  "their" · 5 letters · shape CCVVC

Known mistypes of this pair

  • theirhteir · tehir · theirr · theri · thheir · thier · ttheir

Frequently Asked Questions

Is swapping "the" for "their" ever safe?
No - they are not even the same part of speech. "the" is an article and "their" a verb, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "the" vs "their" - which ranks higher?
"the" is the more common of the two: it sits at frequency rank #93 in our Portuguese list, against #7,842 for "their". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

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

  • Full dictionary entry for "the" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "their" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #66,025 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "the" and "their" also get mixed up with nearby pairs, the highest-scored neighbour is "the vs tune". 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 #66,025 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list