sleigh/slay -- Is there a term for such a pair?

[Gerald Cohen]

   I received the query below. Can anyone help?  The answer is not
"homonym," for which both spelling and pronunciation must be
identical, e.g. "quail" nn. and "quail" verb).

Gerald Cohen


>What is the proper term for two words that sound the same yet are spelled
>differently and have different meaning. Or, is there a term? If so, I can't
>recall. If there isn't, there should be. It seems like I recall meeting such
>a term in my recent past!
>
>Example:   sleigh     slay        meet     meat      and so on.
>
>Help me out!
>