host and guest; the principal and the auxiliary; the principal and the subsidiary; subject and object; subject and object
assassin; candidate fielded by a political party to oust an incumbent of the same party
passenger car; passenger carriage
master swordsman; skilled fencer
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
controversialist; polemic; disputant
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 (bird)
introducing foreign topsoil to one's land (to improve soil quality); foreign topsoil brought to mix with the soil present; (faraway) destination; foreign land; distant land
celestial body seen only for a short time (e.g. comet)
man of letters; man of taste; art connoisseur; narcissus
good visitor; pleasant guest