The words snees, sneeze sound the same but have different meanings and spellings. Why do snees, sneeze sound the same even though they are completely different words?
The answer is simple: snees, sneeze are homophones of the English language.
To expel air forcibly from the mouth and nose in an explosive, spasmodic involuntary action resulting chiefly from irritation of the nasal mucous membrane.
An instance or the sound of sneezing.
sneeze at Informal To treat as unimportant: These deficits are nothing to sneeze at.
Definitions , from The American Heritage® Dictionary of the English Language, 4th Edition and Wordnik.
Homophones (literally "same sound") are usually defined as words that share the same pronunciation, regardless of how they are spelled.
If they are spelled the same then they are also homographs (and homonyms); if they are spelled differently then they are also heterographs (literally "different writing").