(aIs) AES maestro AISS quaiss kitir (means 'Very good!') EISS Meissen, gneiss EYS geyser US priis (old 'price') IS isotopic, incisor, nisi, precise UYSS huyssenite (a borate of manganese and iron) YES
dyester (a cloth dyer) YSS Syssssel (a sheriffdom in Iceland) AIS (naya) paisa, sais EIS Eis, Eisteddfod, feisty, reis EYES eyesore IC ice, nice, twice IJS rijsttafel (a South-East Asian rice dish) ISS Chrissake YC actinomycetes, glycine YS shyster, helichrysum (a creeping plant), tryst short 's' sound followed by long 'I' sound....