I propose that the one Vulcan word everyone on the Enterprise knows is father, because: "Dad and Sa-mekh are fighting (again)" is a phrase that is often transmitted on the ship.
As they get used to each other, the messages decrease in frequency but increase in urgency bc if after 12 years together they are fighting on the bridge then some major shit has gone down.
I like to imagine that there is also a punctuation code that goes along with it.
Dad and Sa-mekh are fighting again. <- over it, done with the nonsense and can't wait for them to be off shift so they can fuck it out of their systems
Dad and Sa-mekh are fighting again! <- the fight might be serious, but it's also a bit funny will gossip about later
Dad and Sa-mekh are fighting again? <- one or both of them may be under some sort of mind-control/outside influence/are actually a doppleganger. Will report back with updates.
Dad and Sa-mekh are fighting again~ <- it's just funny
Dad and Sa-mekh are fighting again <- red alert, shields at max and brace for impact
