homograph
Linguistics term for words that share the same spelling but have different meanings. Often contrasted with 同形異義語 (homograph in a broader sense).
See also: 同形異義語
"同綴異義語" is a linguistic term for words that have the same spelling but different meanings.
同形異義語 is a broader term for homographs, while 同綴異義語 specifically emphasizes identical spelling (綴り).
Compound of 同 (same) + 綴 (spelling) + 異 (different) + 義 (meaning) + 語 (word). A technical term formed from kanji components.