What part of speech is lol?

Answer 1

I'm doing research on this right now. At face value, LOL is an interjection. It typically prefaces other related thoughts, but is not concretely syntactically linked to them.

So in something like "I skipped school yesterday lol" the acronym seems to be working like an interjection, although you don't usually see interjections at the ends of sentences in English (usually they are at the beginning, like "Wow, I love chocolate.").

But LOL has become so semantically flexible that its meaning is no longer directly tied to what the acronym stands for. Therefore, you'll see things like "LOL @ u", which is working like a verb, as is "loling forever." I occasionally see LOL used in the subject predicate slot: "It was lol," where it would then be classified as an adjective.

Short answers: interjection.

-Grad Student, Applied English Linguistics, University of Wisconsin

Answer 2

"lol" is commonly used as an interjection in informal written communication to express amusement or laughter. It is not a traditional part of speech like a noun or verb, but rather a slang term.