"A mhúirnín" is pronounced a woor-neen or a voor-neen depending on what part of Ireland you come from. Not sure of the litteral meaning of the word, but it would translate fairly well to the English word darling.

Also not familiar with a Ghillín - probably derives from the Irish word geal ehich means bright. A gill-een is an approximate pronunciation. The Gh sound is hard to explain, but if you try to pronounce it like the gh in lough, you won't be too far out.

A Stor is roughly pronounce like A Store, although there is abit of an ir sound at the end. a bit like a stow-ir, but the ir is cut short. Its difficult to convey these sounds in print.