Diana is not an Irish word and has no meaning in that language.
'Will' is not an Irish word and has no meaning in Irish.
It doesn't mean anything in Irish.
If you mean Diana, the Princess of Wales. She is dead.
Diana means "heavenly" or "divine".
It doesn't mean anything in Irish.
Nikko doesn't mean anything in Irish.
If you mean the Irish (Gaelic) it is not in that language. Irish has neither 'k' nor 'y' in its alphabet.
Diana, pronounced dee-an-a is given as the Irish form, presumably the Scottish Gaelic is the same.
It doesn't mean anything in Irish: it's not an Irish name. I believe it's French.
"Isabelle" doesn't mean anything in Irish, but the Irish version of the name is Sibéal (shibael).
"eme" doesn't mean anything in Irish. It doesn't look like an Irish word.
Does Ballavue mean anything in Irish? I can find no example of it as a placename. 'Vue' is not a word in Irish.