Most common:
* 笑 (xiào) - This is the most common and general word for laughter. It can be used for any type of laughter, from a chuckle to a loud guffaw.
Other options:
* 哈哈 (hāhā) - This is an onomatopoeia for laughter, often used to represent the sound of laughter.
* 嘿嘿 (hēihēi) - This is another onomatopoeia, usually used to represent a mischievous or sly laugh.
* 咯咯 (gēgē) - This is a more delicate sound of laughter, often used for a giggle or chuckle.
* 哈哈大笑 (hāhā dàxiào) - This literally means "laugh loudly", and is used to describe a hearty laugh.
* 哄堂大笑 (hōng táng dàxiào) - This literally means "laughter fills the hall", and is used to describe a loud, uproarious laughter shared by a group.
The best choice for you will depend on the specific situation.