The words came, kame sound the same but have different meanings and spellings. Why do came, kame sound the same even though they are completely different words?
The answer is simple: came, kame are homophones of the English language.
A slender grooved lead bar used to hold together the panes in stained glass or latticework windows.
Past tense of come.
A short ridge or mound of sand and gravel deposited during the melting of glacial ice.
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").