Pronunciation spelling is different from spelling pronunciation

A pronunciation spelling of a word is a spelling intentionally different from the standard spelling, used to emphasis a particular pronunciation of the word. The spelling uses the regular spelling rules of the language. Most are nonce coinages, but some have become standardised, e.g. gonna to represent the pronunciation of going to, as in I'm gonna catch you.

Pronunciation spellings may be used informally to indicate the pronunciation of foreign words or those whose spelling is irregular or not sufficient to deduce the pronunciation. In such cases, typeface, punctuation or letter case may also be used, e.g. to indicate stress or syllabication:

"Diarrhoea" is pronounced DYE-uh-REE-a

This offers an intuitive alternative to systems like the International Phonetic Alphabet, which offer precise descriptions but need to be learned. However, it relies on the writer's encoding mapping to the same phonemes as the reader's; e.g.

Föhn is pronounced "Fern"

might be adequate for a non-rhotic reader but not a rhotic one.

Pronunciation spellings, or eye dialect, are frequently used in narratives to represent nonstandard dialects or idiolects, often to create an impression of backwardness or illiteracy. In such cases, words may be respelled even where the resulting pronunciation is the same as the standard one, e.g.

"Pleese, mistur," said the beggar.