While "pretend" doesn't have a true homonym, there are words that sound similar but are spelled differently and have distinct meanings:
* "Pre-tend" (pronounced the same but with a hyphen) is a combination of "pre-" and "tend" and has a different meaning altogether.
* "Prate" sounds similar but means to talk foolishly or at length.
So, while a true homonym doesn't exist, there are words that sound similar but have different meanings.