khah-noo-KAH
There is no such thing as "Hebrew Orthodox". There is only Hebrew. In Hebrew, you usually do not mention the name of the holiday in greetings. So you would just say Happy Holiday, which is hahg same'akh (חג שמח) Some communities do say Hanukkah Same'akh (חנוּכה שמח) meaning "Happy Hanukkah".
Menorat-Chanukkah (traditional), or Hanukkiah (modern).
Hanukkah is a holiday, not a language. You cannot say "Merry Christmas in Hanukkah. That's like asking: "How do you say Merry Christmas in Easter" I think he means how do you say merry Christmas in Hebrew
Hanukkah is the name of Hanukkah. In Hebrew it is spelled חֲנֻכָּה
חנוכה שמחSee also: More about Hanukkah
Hebrew.
The word "Happy" is English and the word "Hanukkah" is Hebrew.
Hanukkah always starts on the Hebrew calendar date of 25 Kislev
It's the same in all languages. But in French, you wouldn't pronounce the 'H'.
Yes, there are dozens of Hanukkah songs in French. But most are in Hebrew or English.
kislev (כסלו)
Hanukkah is a Hebrew word that means dedication. It has no meaning in English, Spanish, or any other language except Hebrew. But if you are asking how to spell Hanukkah in Spanish, it's Janucá.