explorer (n.)
- adventurer
- alpinist
- ancestor
- announcer
- antecedent
- astronaut
- avant-garde
- bellwether
- buccinator
- bushwhacker
- camper
- climber
- commuter
- cosmopolite
- cruiser
- excursionist
- fare
- forebear
- forerunner
- frontiersman
- fugleman
- goer
- groundbreaker
- guide
- hajji
- harbinger
- herald
- innovator
- journeyer
- leader
- mariner
- messenger
- mountaineer
- palmer
- passenger
- passerby
- pathfinder
- pilgrim
- pioneer
- point
- precedent
- precursor
- predecessor
- rubberneck
- rubbernecker
- sailor
- scout
- sightseer
- straphanger
- tourer
- tourist
- trailblazer
- transient
- traveler
- trekker
- tripper
- vanguard
- viator
- voyager
- wayfarer
