Which to use
“upstairs” is an adjective and “upstart” is a noun - they look or sound alike but fill different roles in a sentence.
- #8,742
- “upstairs” frequency rank
- #35,570
- “upstart” frequency rank
- 44312
- confusion score
Side-by-Side Comparison
| Feature | upstairs | upstart |
|---|---|---|
| Definition | Located on a higher floor or level of a building. | One who has suddenly gained wealth, power, or other prominence, but either has not received social acceptance or has become arrogant or presumptuous. |
Where the spellings diverge
Shared letters are muted; the letters that actually set upstairs and upstart apart are highlighted. They share 6 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
upstairs and upstart form a confusable pair in the English index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They differ by 1 letter(s) in length - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 44312, derived from the frequency rank of both members and their visual similarity.
upstairs is recorded at frequency rank #8,742, classified as anadj, pronounced /ˌʌpˈstɛɹz/. upstart is at rank #35,570, tagged as anoun, pronounced /ˈʌp.stɑːt/.
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 44312, this pair ranks #231,806 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Frequency comparison
Frequently Asked Questions
Can "upstairs" and "upstart" be used interchangeably?
Remembering upstairs vs upstart
The fastest way to pick the right one every time.
- Check the role first: if you need an adjective, it's “upstairs”; for a noun, it's “upstart”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “upstairs” entry
- Browse more pairs most likely to be confused. Most confusable