thanvsthusWhat's the difference?

Quick tell: than is a conjunction, thus is an adverb, so they fill different roles in a sentence.

Which to use

“than” is a conjunction and “thus” is an adverb - they look or sound alike but fill different roles in a sentence.

#77
“than” frequency rank
#1,323
“thus” frequency rank
1400
confusion score

Side-by-Side Comparison

Feature than thus
Definition Used in comparisons, to introduce the basis of comparison. In this way or manner.

Where the eye mixes than and thus

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
than
4 ch
thus

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: than is /ðæn/ while thus is /ˈðʌs/. 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 (conjunction vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 1400, derived from the frequency rank of both members and their visual similarity.

than is recorded at frequency rank #77, classified as aconj, pronounced /ðæn/. thus is at rank #1,323, tagged as anadv, pronounced /ˈðʌs/.

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 1400, this pair ranks #527,514 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of than vs thus

Shared letters: ht. Private to "than": an. Private to "thus": su.

"than" · 4 letters · shape CCVC  ·  "thus" · 4 letters · shape CCVC

Known mistypes of this pair

  • thanhtan · tahn · thann · thhan · thna · tthan
  • thushtus · thhus · thsu · thuss · tthus · tuhs

Frequently Asked Questions

Can "than" and "thus" be used interchangeably?
No - they are not even the same part of speech. "than" is a conjunction and "thus" an adverb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "than" or "thus"?
"than" is the more common of the two: it sits at frequency rank #77 in our English list, against #1,323 for "thus". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

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

Source: FrequencyWords open word-frequency list