Which to use
“simplex” is an adjective and “simply” is an adverb - they look or sound alike but fill different roles in a sentence.
- #30,229
- “simplex” frequency rank
- #887
- “simply” frequency rank
- 31116
- confusion score
Side-by-Side Comparison
| Feature | simplex | simply |
|---|---|---|
| Definition | Having a single structure; not composite or complex; undivided, unitary. | In a simple way or state; considered in or by itself; without addition; alone. |
Where the spellings diverge
Shared letters are muted; the letters that actually set simplex and simply apart are highlighted. They share 5 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
simplex and simply 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 31116, derived from the frequency rank of both members and their visual similarity.
simplex is recorded at frequency rank #30,229, classified as anadj, pronounced /ˈsɪmplɛks/. simply is at rank #887, tagged as anadv, pronounced /ˈsɪmpli/.
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 31116, this pair ranks #348,887 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Frequency comparison
Frequently Asked Questions
Can "simplex" and "simply" be used interchangeably?
Remembering simplex vs simply
The fastest way to pick the right one every time.
- Check the role first: if you need an adjective, it's “simplex”; for an adverb, it's “simply”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “simplex” entry
- Browse more pairs most likely to be confused. Most confusable