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pronunciation respelling

n. (context lexicography English) The respelling of a word or words to show pronunciation, especially as used in dictionaries.

Wikipedia
Pronunciation respelling

A pronunciation respelling is a regular phonetic respelling of a word that does have a standard spelling, so as to indicate the pronunciation. Pronunciation respellings are sometimes seen in dictionaries.

This should not be confused with pronunciation spelling, which is an ad hoc spelling of a word that has no standard spelling. Most of these are nonce coinages, but some have become standardized, e.g. gonna to represent the pronunciation of going to, as in I'm gonna catch you.