Straight vs. Strait
The words sound alike in standard pronunciation but are not spelling variants. “Strait” is a much narrower noun, while “straight” has broad adjective and adverb uses.
Use “straight” for direct, not curved, level, consecutive, or related adjective/adverb senses. Use “strait” chiefly as a noun for a narrow water passage; plural “straits” also appears in expressions for difficult circumstances.
Key details
Choose the right form
| Meaning / context | Use | Decision |
|---|---|---|
| not curved, direct, level, consecutive, or plain | straight | Use the common adjective/adverb spelling. |
| narrow water passage connecting larger bodies of water | strait | Use the geographic noun. |
| difficult circumstances, especially in the plural | straits | Keep the established plural expression. |
Quick tests
Decision test
Does the sentence name a narrow water passage or the plural expression “straits”?
If yes: Use “strait”/“straits.”
If no: For direct, level, uncurved, consecutive, or similar senses, use “straight.”
Caveat: Do not use “strait” as an alternative spelling of “straight”; preserve the separate geographic and idiomatic noun senses.
Examples
Draw a straight line across the page.
“Straight” means not curved.
The ship entered the narrow strait.
“Strait” is the geographic noun.
The company was in difficult straits.
The plural noun appears in the established difficulty sense.
Further guidance
Core difference
Use the common adjective/adverb spelling.
Fast Test
Use “strait”/“straits.” For direct, level, uncurved, consecutive, or similar senses, use “straight.”
Usage Boundary
Do not use “strait” as an alternative spelling of “straight”; preserve the separate geographic and idiomatic noun senses.
Sources and evidence
Sources are shown with the role they play in this guide. Historical or style-sensitive claims are kept within the evidence boundary described above.
- straight (opens in a new tab)Cambridge University Press · Straight has core senses including not curving, direct, level, consecutive, plain, and related adjective/adverb uses.
- strait (opens in a new tab)Cambridge University Press · Strait is a noun for a narrow water passage connecting larger bodies of water and occurs in expressions such as dire straits for difficult circumstances.