Number of guests.
Passenger
It would depend how it is used. It may mean per person. It is used in other industries as passengers. So it most likely translates to an individual or person. "The restaurant allows 4 pax per table" Just my guess from what I have read.
Pax means peace. More likely the salutation would be pax vobiscum translated as peace be with you.
Pax means "peace" and terra means "earth". Pax terra is missing something; it should probably be pax in terra, "peace on earth".
pax is used in the tourist industry and it is referred to passenger. 2 pax means two passenger or persons
"Pax" means "Passenger" or "Person", a Passenger can be an adult, child or infant.
'Peace to the unconquered'
Tranquility, serenity, harmony, calmness.
Peace to mankind
Pax Novus literally means "new peace". However to be grammatically correct, it should be written Pax Nova, as the word pax is feminine so the adjective should also be feminine to agree with it.
ARP means the average rate per pax.
show variation on 'Pax'
Plenty of/much peace.