For companies:
* Ltd. is the most common abbreviation for "limited" in company names. It stands for "limited liability" and is used in many countries.
* Limited can also be used in full, especially in some jurisdictions.
For other contexts:
* Ltd. is not typically used outside of company names.
* Lt. is sometimes used as an abbreviation for "limited" in other contexts, but it is not as common as Ltd.
* Lim. is also sometimes used, but it is not standard.
Therefore, it's generally safe to use Ltd. when referring to a company limited by shares. When in doubt, check the specific company's documentation or website to confirm the abbreviation they use.