LOL stands for Laugh Out Loud. It is an internet slang used to express laughter or amusement in a text-based communication, such as chat messages or online comments.
Usage examples
She told a funny joke, and I responded with "lol".
I couldn't stop laughing at the ridiculous meme my friend shared, so I commented "lol".
After reading the hilarious comments on the post, I couldn't help but type "lol" in response.
During the online gaming session, my teammate made a silly mistake, and I jokingly said "lol" in the chat.
When my friend shared an embarrassing story, I couldn't help but reply with "lol" to show my amusement.