Homographs are words that are spelled the same but have different meanings and sometimes different pronunciations.
From the pairs you provided:
- yes, no - Not homographs
- bat, bat - This could be considered a single word, but if referring to the animal and the sports equipment, they are homographs (different meanings).
- bat, bat - Same as above, considered a repeat.
- map, tap - Not homographs (different spellings).
- map, tap - Same as above, considered a repeat.
- their, there - Not homographs (different spellings).
- their, there - Same as above, considered a repeat.
So the only pairs that could be considered homographs are bat, bat in the context of having different meanings (animal vs. sports equipment).