General:
* Giggle: This suggests a light, high-pitched laugh, often associated with nervousness or amusement.
* Chuckle: This implies a quiet, soft laugh, often expressing amusement or satisfaction.
* Snicker: This is a secretive or disrespectful laugh, often used to mock or belittle someone.
* Titter: This refers to a nervous, high-pitched laugh, often accompanied by embarrassment or discomfort.
More specific:
* Chortle: This suggests a deep, hearty laugh, often expressing amusement or enjoyment.
* Guffaw: This is a loud, boisterous laugh, often expressing unrestrained amusement.
* Cackle: This is a harsh, loud laugh, often associated with wickedness or amusement at someone's misfortune.
The best verb to use will depend on the specific context and the nuances you want to convey.