English homophones
ex/X
"ex" is a noun; "X" is a num - grammar picks the spelling, not sound. Size rank #133 of 1,007 English groups.
Data vintage
Grammar picks the spelling
Same sound, different grammar: "ex" arrives as a noun, while "X" is a num. Once the sentence role is fixed, only one spelling fits.
Spelling pairs in this cluster
- No shared spelling stem: "ex" is 2 letters, "X" is 1; only the sound ties them.
Orthographic DNA of this cluster
Shared letters across ex, X: x. Private letters are the ones only one spelling owns: the eye's fastest tell once sound is out of the picture.
ex
2 letters · 1 vowels · shape VC
Inventory ex · private e
X
1 letters · 0 vowels · shape C
Inventory x · no private letters vs siblings
Pick the spelling from the meaning
- Write "ex" when you mean: The name of the Latin script letter X/x.
- Write "X" when you mean: An unknown quantity or unknown value.
Each spelling
Nearby English homophone groups
What to do next
You've reviewed the 2-spelling cluster (ex, X). Here's where to go from here.
- "X" is the most frequent headword in this 2-spelling cluster (rank #647 in English). Full entry
- Among English homophone groups, a cluster of 2 spellings ranks #133 by size (1,007 groups in this vintage). Corpus statistics
- Explore a nearby 2-spelling cluster: er · err. Nearby cluster
- Grammar often disambiguates this cluster, match the meaning to the part of speech before picking a spelling. Pick by meaning
PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.