Explorer
Part of speech: noun
Definition: One who explores something A person who by means of travel (notably an expedition) searches out new information. Any of various hand tools, with sharp points, used in dentistry.
Example sentence: We all become great explorers during our first few days in a new city, or a new love affair.
Adventurer
Part of speech: noun
Definition: One who adventures; as, the merchant adventurers; one who seeks his fortune in new and hazardous or perilous enterprises.A soldier of fortune, a speculator.A social pretender on the lookout for advancement; one who pushes his fortune by equivocal means, as false pretences.