host and guest; principal and auxiliary; subject and object (philosophical); subject and object
objectivity; objective; object (philosophical)
passenger; traveller; traveler; tourist
guest of honor; guest of honour; good customer; important customer
unexpected (but welcome) visitor; rare guest
flood of customers; roaring business
guest of honor; guest of honour; main guest at a tea ceremony
guest member; associate member; honorary member
dying while traveling; dying while abroad
traveller (passing through); traveler
politician (or someone otherwise engaged in politics); statesman
foreign visitor; foreign guest
lone traveller; lone traveler
immortal mountain wizard (in Taoism); crane
celestial body seen only for a short time (e.g. comet)
land which one visits; alien land; topsoil brought from another place to mix with the soil
man of letters; man of taste; art connoisseur; narcissus