tankvstauWhat's the difference?

Which to use

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

#2,647
“tank” frequency rank
#19,983
“tau” frequency rank
22630
confusion score

Side-by-Side Comparison

Feature tank tau
Definition A closed container for liquids or gases. The letter Τ /τ in the Greek alphabet; being the nineteenth letter of the Classical and Modern Greek, and the twenty-first letter of the Old and Ancient Greek alphabets.

Where the eye mixes tank and tau

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

4 ch
tank
3 ch
tau

Spelling & Dictionary Insight

A purely visual mix-up. tank (/ˈtæŋk/) and tau (/taʊ/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 22630, derived from the frequency rank of both members and their visual similarity.

tank is recorded at frequency rank #2,647, classified as anoun, pronounced /ˈtæŋk/. tau is at rank #19,983, tagged as anoun, pronounced /taʊ/.

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 22630, this pair ranks #415,182 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of tank vs tau

Shared letters: at. Private to "tank": kn. Private to "tau": u.

"tank" · 4 letters · shape CVCC  ·  "tau" · 3 letters · shape CVV

Known mistypes of this pair

  • tankatnk · takn · tankk · tannk · tnak · ttank

Frequently Asked Questions

Can "tank" and "tau" be used interchangeably?
No. They are said differently (/ˈtæŋk/ versus /taʊ/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "tank" or "tau"?
"tank" is the more common of the two: it sits at frequency rank #2,647 in our English list, against #19,983 for "tau". 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