The words whoa, ho, hoe sound the same but have different meanings and spellings. Why do whoa, ho, hoe sound the same even though they are completely different words?
The answer is simple: whoa, ho, hoe are homophones of the English language.
Used to express surprise or joy, to attract attention to something sighted, or to urge onward: Land ho! Westward ho!
Slang A prostitute.
A tool with a flat blade attached approximately at a right angle to a long handle, used for weeding, cultivating, and gardening.
To weed, cultivate, or dig up with a hoe.
To work with a hoe.
Used as a command to stop, as to a horse.
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.