The Correct spelling is: whether
Common misspellings of the word whether are:
How do you spell whether?. It is not whther
- Used in indirect questions to introduce one alternative: We should find out whether the museum is open. See Usage Note at doubt, if.
- Used to introduce alternative possibilities: Whether she wins or whether she loses, this is her last tournament.
- Either: He passed the test, whether by skill or luck.
Which: â€œWe came in full View of a great Island or Continent, (for we knew not whether)â€ (Jonathan Swift).idiom:
whether or no
- Regardless of circumstances.
[Middle English, from Old English hwether.]