I agree, any keywords need to be very clear. There is nothing worse (well there's plenty of things worse but you know what I mean ;-) when role-playing and selecting a dialogue choice in-game, that turns out not to have the meaning you intended to express. Head cannon (justifying game-play with your imagination) only goes so far. Keywords for things like 'leave' or straightforward investigative options such as 'treasure?' are all well and good, but a key danger of keywords is the potential lack of clarity.
