However, you can use the following options depending on the context:
* 2nite: This is a common informal abbreviation used in texting and online communication.
* Tn: This is a less common abbreviation, but can be used in some contexts.
* Tnt: This is a phonetic abbreviation, meaning it sounds like "tonight." It's not widely accepted but can be used in informal situations.
It's important to remember that abbreviations can be confusing and should be used sparingly, especially in formal communication.