The word "jisms" is not a correct or commonly used word in English. However, if we break down the spelling using IPA phonetic transcription, we can see that it would be pronounced as /dʒɪzəmz/. The "j" sound is represented by the IPA symbol /dʒ/, which is a combination of the sounds "d" and "zh". The "i" is pronounced as /ɪ/, and the "s" is pronounced as /z/. The plural form is denoted by the addition of the "s" sound represented by the IPA symbol /z/.