Bica: Hello Isili: Me/I Tosa: You Sorr: Enemy/hostile Urgo: Prisoner's name Sstresh: Help Yeshor'click: Friend Sela: Barter/Trade 'click: No Sseth: Yes Sorra: Steal Zekka: Food Thepa: Lizardmen Those are the ones I still remember...
I personally find it bizarre to think that every intelligent species in a world would all speak a common language. Even humans don't all speak the same language - sometimes even within the same country. Then again, I enjoy dabbling in linguistics, so I'm perfectly fine with deciphering foreign or unusual languages.