Which to use
“stay” is a verb and “STD” is a noun - they look or sound alike but fill different roles in a sentence.
- #473
- “stay” frequency rank
- #16,797
- “STD” frequency rank
- 17270
- confusion score
Side-by-Side Comparison
| Feature | stay | STD |
|---|---|---|
| Definition | To remain in a particular place, especially for a definite or short period of time; sojourn; abide. | Initialism of sexually transmitted disease. |
Letter map: stay vs STD
Shared letters muted; letters that set stay and STD apart highlighted. Shared run: 2.
Part-of-speech tell for stay / STD
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: stay is averb and STDanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 17270, derived from the frequency rank of both members and their visual similarity.
stay is recorded at frequency rank #473, classified as averb, pronounced /steɪ/. STD is at rank #16,797, 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 17270, this pair ranks #452,532 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of stay vs STD
Shared letters: st. Private to "stay": ay. Private to "STD": d.
"stay" · 4 letters · shape CCVV · "STD" · 3 letters · shape CCC
Known mistypes of this pair
- stay ← saty · sstay · stayy · sttay · stya · tsay
Frequently Asked Questions
Can "stay" and "STD" be used interchangeably?
In ordinary English text, does "stay" or "STD" show up more?
What to do next
Pair "stay" vs "STD" is on the table, pick a follow-up below.
- Full dictionary entry for "stay" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "STD" - compare definitions side by side with the headword page. Word entry
- This pair ranks #452,532 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "stay" and "STD" also get mixed up with nearby pairs, the highest-scored neighbour is "STD vs suds". 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 #452,532 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.