Formal:
* 尼古拉斯 (Ní Gǔ Lā Sí): This is the most common and direct translation of "Nicholas." It uses the pinyin romanization system and is appropriate for formal occasions.
* 尼可拉斯 (Ní Kě Lā Sí): This is a slightly less formal variant of the above, using a slightly different pronunciation of the second syllable.
Informal:
* 尼克 (Ní Kè): This is a common abbreviation used in informal settings.
* 小尼 (Xiǎo Ní): This is a more friendly and familiar way to refer to someone named Nicholas. It literally means "Little Nicholas."
Other options:
* 尼古拉 (Ní Gǔ Lā): This is a shorter form of "尼古拉斯" that is sometimes used.
* 尼可 (Ní Kě): This is a shorter form of "尼可拉斯" that is also sometimes used.
Ultimately, the best way to say "Nicholas" in Chinese depends on the specific situation and your relationship with the person you are addressing.