1. 圣诞节 (Shèngdànjié): This is the most common and literal translation, meaning "Holy Birth Festival". It's the official term used in mainland China and is widely understood.
2. 耶诞节 (Yēdànjié): This is another common way to write Christmas, using the transliteration of the English word "Christmas".
3. 圣诞 (Shèngdàn): This is a shorter form, just meaning "Holy Birth", and is often used in informal contexts.
4. 平安夜 (Píng'ānyè): This translates to "Peaceful Night" and refers specifically to Christmas Eve.
5. 圣诞老人 (Shèngdàn Lǎorén): This translates to "Santa Claus" and is used to refer to the figure of Santa Claus.
The best way to spell Christmas in Chinese will depend on the specific situation. If you are writing a formal letter, it's best to use "圣诞节". If you are talking to friends, you might use "圣诞" or "耶诞节".