SOBvssookWhat's the difference?

Quick tell: SOB is a noun, sook is a verb, so they fill different roles in a sentence.

Which to use

“SOB” is a noun and “sook” is a verb - they look or sound alike but fill different roles in a sentence.

#20,503
“SOB” frequency rank
#46,187
“sook” frequency rank
66690
confusion score

Side-by-Side Comparison

Feature SOB sook
Definition Initialism of son of a bitch. Alternative spelling of suck.

Letter map: SOB vs sook

Shared letters muted; letters that set SOB and sook apart highlighted. Shared run: 2.

3 ch
SOB
4 ch
sook

Role in the sentence - SOB and sook

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: SOB is anoun and sookaverb. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 66690, derived from the frequency rank of both members and their visual similarity.

SOB is recorded at frequency rank #20,503, classified as anoun, pronounced /ˌɛs oʊ ˈbi/. sook is at rank #46,187, tagged as averb.

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 66690, this pair ranks #66,827 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of SOB vs sook

Shared letters: os. Private to "SOB": b. Private to "sook": k.

"SOB" · 3 letters · shape CVC  ·  "sook" · 4 letters · shape CVVC

Known mistypes of this pair

  • sookosok · sok · soko · sookk · ssook

Frequently Asked Questions

Is swapping "SOB" for "sook" ever safe?
No - they are not even the same part of speech. "SOB" is a noun and "sook" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "SOB" or "sook"?
"SOB" is the more common of the two: it sits at frequency rank #20,503 in our English list, against #46,187 for "sook". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

You've compared "SOB" and "sook". Here's where to go from here.

  • Full dictionary entry for "SOB" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sook" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #66,827 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "SOB" and "sook" also get mixed up with nearby pairs, the highest-scored neighbour is "soca vs sook". 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 #66,827 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