even when the sound is identical, it can be hard to tell that two words are the same.
that is even when there is polysemy (lots of dictionary entries for the same 'word'), if they two 'words' (spelled and sounded the same) appear in two different contexts, then it's hard to tell that they are different.
rake and rake is an example (not the best one). at first hearing you want to make a pun. but after you get used to it, they are two totally different words (being cognate is not necessary for this situation)
Do you know what I mean? Or does that just sound too weird?
looking at the word/spelling, it is easy to see that they are identical, but when used in context, there is no question - the two different meanings would never be confused.
so they really are two different things altogether.
I need more slightly differently spelled words... to make the case