供参考：
<dictionary.com>
homograph
noun
a word of the same written form as another but of different meaning and usually origin, whether pronounced the same way or not, as bear1 “to carry; support” and bear2 “animal” or lead1 “to conduct” and lead2 “metal.”
Homograph Definition & Meaning | Dictionary.com
<merriam-webster.com>
Definition of homograph
: one of two or more words spelled alike but different in meaning or derivation or pronunciation (such as the bow of a ship, a bow and arrow)
Homograph Definition & Meaning - Merriam-Webster