'Champs' is not a word in Irish.
the fields of the choosen flowers
Champs sur Marne is a place name. The name means 'fields along the Marne (river)'
'Will' is not an Irish word and has no meaning in Irish.
It doesn't mean anything in Irish.
The equivalent of someone is champion in the French language is quelqu'un est champion.
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.
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.