stabvsSTMConfusable pair

Which to use

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

#9,965
“stab” frequency rank
#38,181
“STM” frequency rank
48146
confusion score

Side-by-Side Comparison

Feature stab STM
Definition An act of stabbing or thrusting with an object. Initialism of scanning tunneling microscope.

Letter map: stab vs STM

Shared letters muted; letters that set stab and STM apart highlighted. Shared run: 2.

4 ch
stab
3 ch
STM

Spelling & dictionary notes on stab vs STM

stab and STM are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 48146, derived from the frequency rank of both members and their visual similarity.

stab is recorded at frequency rank #9,965, classified as anoun, pronounced /stæb/. STM is at rank #38,181, tagged as anoun.

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 48146, this pair ranks #195,831 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of stab vs STM

Shared letters: st. Private to "stab": ab. Private to "STM": m.

"stab" · 4 letters · shape CCVC  ·  "STM" · 3 letters · shape CCC

Known mistypes of this pair

  • stabsatb · sstab · stabb · stba · sttab · tsab

Frequently Asked Questions

Do "stab" and "STM" mean the same thing in a sentence?
No. They differ by 1 letter(s) in length, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
In ordinary English text, does "stab" or "STM" show up more?
"stab" is the more common of the two: it sits at frequency rank #9,965 in our English list, against #38,181 for "STM". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

You've compared "stab" and "STM". Here's where to go from here.

  • Full dictionary entry for "stab" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "STM" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #195,831 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "stab" and "STM" also get mixed up with nearby pairs, the highest-scored neighbour is "Sif vs STM". 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 #195,831 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