In the sense - you are welcome in my house: Vous êtes le bienvenu / la bienvenue In the sense of - thank you - you're welcome: Merci - De rien
You just said it yourself. If you want to say it in another language, you need to say which one.
De rien
In Ivory Coast, you can say "Bienvenue" to express welcome in French, which is the official language. Additionally, in some local languages like Akan, you might say "Akwaba" to welcome someone. The specific greeting can vary depending on the region and language spoken.
To say "you are welcome" in Igbo language, you can say "Ị na-akwụgo."
"Welcome" in Igbo language is "Nnọọ."
Your welcome
welcome
You say "Welcome!" in Yoruba language of the Western African origin as "Ek'abo".
You say welcome in madagascar,:tonga soa
In Odia language, "welcome" can be translated to "ସ୍ଵାଗତ" (swagat).
You can say le-le or liyo.https://www.livinglanguage.com/community/discussion/315/saying-youre-welcome-in-japanese-not-recommended
In Inuktitut, the language of the Inuit, you can say "qujannamiik" to mean "welcome".