wackvsweekConfusable pair

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

Which to use

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

#30,646
“wack” frequency rank
#251
“week” frequency rank
30897
confusion score

Side-by-Side Comparison

Feature wack week
Definition Annoyingly or disappointingly bad, in various senses; lousy, corny, cringy, uncool, messed up. Any period of seven consecutive days.

Where the eye mixes wack and week

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

4 ch
wack
4 ch
week

Look-alike desk: wack vs week

These two trip readers on the page rather than in the ear: wack is /ˈwæk/ while week is /wiːk/. 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 (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 30897, derived from the frequency rank of both members and their visual similarity.

wack is recorded at frequency rank #30,646, classified as anadj, pronounced /ˈwæk/. week is at rank #251, tagged as anoun, pronounced /wiːk/.

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 30897, this pair ranks #350,686 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of wack vs week

Shared letters: kw. Private to "wack": ac. Private to "week": e.

"wack" · 4 letters · shape CVCC  ·  "week" · 4 letters · shape CVVC

Known mistypes of this pair

  • wackawck · wacck · wackk · wakc · wcak · wwack
  • weekewek · weekk · wek · weke · wweek

Frequently Asked Questions

Is swapping "wack" for "week" ever safe?
No - they are not even the same part of speech. "wack" is an adjective and "week" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "wack" vs "week" - which ranks higher?
"week" is the more common of the two: it sits at frequency rank #251 in our English list, against #30,646 for "wack". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

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

  • Full dictionary entry for "wack" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "week" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #350,686 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "wack" and "week" also get mixed up with nearby pairs, the highest-scored neighbour is "wack vs wawa". 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 #350,686 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