Which to use
“so” is a conjunction and “su” is a noun - they look or sound alike but fill different roles in a sentence.
- #33
- “so” frequency rank
- #8,094
- “su” frequency rank
- 8127
- confusion score
Side-by-Side Comparison
| Feature | so | su |
|---|---|---|
| Definition | Reduced form of 'so that', used to express purpose; in order that. | Alternative form of xu (“former Vietnamese currency”). |
Letter map: so vs su
Shared letters muted; letters that set so and su apart highlighted. Shared run: 1.
Spelling & Dictionary Insight
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: so is aconjunction and suanoun. On the page they differ by a single letter - o in “so” becomes u in “su”. Our composite confusion score for this pair is 8127, derived from the frequency rank of both members and their visual similarity.
so is recorded at frequency rank #33, classified as aconj, pronounced /səʊ/. su is at rank #8,094, 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 8127, this pair ranks #504,001 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of so vs su
Shared letters: s. Private to "so": o. Private to "su": u.
"so" · 2 letters · shape CV · "su" · 2 letters · shape CV