It is Latin for 'Clear'.
I can find no Welsh equivalent for the name "Claire'.
Bright, light
it means sundown.
It means Chist or Izvesten.
Clear / bright. English version is Claire
Sinclaire is a male name that means St. Claire.
Claire is a girls name
I suppose you mean "Marie-Claire", the first name and magazine name.
Claire Nielson's birth name is Claire Isbister.
Claire Oelkers's birth name is Claire Oelkers.
Claire Trevor's birth name is Wemlinger, Claire.
Claire Tomalin's birth name is Claire Delavenay.