disambiguate

täsmentää To remove ambiguities from; to make less ambiguous.
puhekieltä To distinguish one word or lexical unit ((m) a different one which has a similar form).
*1967, Language: Journal of the Linguistic Society of America, vol. 43, p. 619:

When necessary, the Greek spelling is disambiguated by an appended phonetic transcription.

The dictionary's traditional “readers” have largely survived this transition, too. They find earlier and better uses of terms which computers can't (in the jargon) disambiguate—distinguish from other similar uses.