theirvstheseWhat's the difference?

Which to use

“their” and “these” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#56
“their” frequency rank
#94
“these” frequency rank
150
confusion score

Side-by-Side Comparison

Feature their these
Definition Belonging to, from, of, or relating to, them (plural). plural of this

Where the eye mixes their and these

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

5 ch
their
5 ch
these

Spelling & Dictionary Insight

A purely visual mix-up. their (/ðɛə/) and these (/ðiːz/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 150, derived from the frequency rank of both members and their visual similarity.

their is recorded at frequency rank #56, classified as adet, pronounced /ðɛə/. these is at rank #94, tagged as adet, pronounced /ðiːz/.

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 150, this pair ranks #529,809 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of their vs these

Shared letters: eht. Private to "their": ir. Private to "these": s.

"their" · 5 letters · shape CCVVC  ·  "these" · 5 letters · shape CCVCV

Known mistypes of this pair

  • theirhteir · tehir · theirr · theri · thheir · ttheir
  • thesehtese · tehse · thees · thesse · thhese · thsee · tthese

Frequently Asked Questions

Can "their" and "these" be used interchangeably?
No. They are said differently (/ðɛə/ versus /ðiːz/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "their" or "these"?
"their" is the more common of the two: it sits at frequency rank #56 in our English list, against #94 for "these". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

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

Source: FrequencyWords open word-frequency list