The words raise, rase, rays, raze, res sound the same but have different meanings and spellings. Why do raise, rase, rays, raze, res sound the same even though they are completely different words?
The answer is simple: raise, rase, rays, raze, res are homophones of the English language.
raise the stakes To increase one's commitment or involvement.
raise eyebrows To cause surprise or mild disapproval.
Cain To reprimand someone angrily.
Cain To behave in a rowdy or disruptive fashion.
Variant of raze.
Any of various marine fishes of the order Rajiformes or Batoidei, having cartilaginous skeletons, horizontally flattened bodies, and narrow tails.
To cast rays on; irradiate.
To supply with rays or radiating lines.
To send out as rays; emit.
Archaic To erase.
To scrape or shave off.
To level to the ground; demolish. See Synonyms at ruin.
A thing; the particular thing; a matter; a point.
Definitions from The American Heritage® Dictionary of the English Language, 4th Edition, from the GNU version of the Collaborative International Dictionary of English and Wordnik.
Homophones (literally "same sound") are usually defined as words that share the same pronunciation, regardless of how they are spelled.