The name Sam can be written in Japanese as: サム
The name 'Courtney' isコートニー (kootonii) in Japanese.
The name 'Ethan' in Japanese isイーサン (iisan).
Cassandra. It is not a Japanese name, and will never be made into an actual Japanese word.
キアナ /ki a na/ is the Japanese term for that name.
dan (da-n)
階段 /kai dan/ is Japanese word for 'stairs, stairway'.
You'd write it like ダン and you would pronounce it like dan (not like the name "Dan" in "Daniel" but like "You da man" kind of 'da' sound)
That all depends on what your name is.
ダンジョン /dan jon/ is the same term inserted into Japanese. As for a Japanese term for it you can use 地下牢 /chi ka rou/ meaning same.
The name Sam can be written in Japanese as: サム
The name Ive would be イベ /i be/ in Japanese.
メグ (me gu) is Japanese for name 'Meg'.
The name 'Courtney' isコートニー (kootonii) in Japanese.
The name 'Ethan' in Japanese isイーサン (iisan).
No
The name isn't Japanese so it won't have a meaning. But the Japanese way to say the name would be シャンテル (Shanteru).