It's different. It doesn't always just give one translation but different options. I can do things like give it a phrase and then ask it to break it down. Or give it a word and if its translation doesn't make sense to me ask how it works in the context of a phrase.
llm -c, which continues the previous conversation, is specifically useful for that sort of manipulation.
It's also available from the command line, which I find convenient because I basically always have one open.