pioneer (n.)
- adventurer
- airhead
- alpinist
- ancestor
- announcer
- antecedent
- astronaut
- avant-garde
- beachhead
- begin
- bellwether
- bridgehead
- buccinator
- bushwhacker
- camper
- climber
- coin
- colonial
- colonist
- colonizer
- commuter
- cosmopolite
- cruiser
- engineer
- excursionist
- explorer
- fare
- forebear
- forefront
- forerunner
- found
- front
- front-runner
- frontiersman
- fugleman
- goer
- groundbreaker
- guide
- hajji
- harbinger
- head
- herald
- homesteader
- immigrant
- initial
- initiate
- innovator
- institute
- journeyer
- launch
- lead
- leader
- line
- maiden
- mariner
- messenger
- mountaineer
- nester
- original
- outpost
- pacemaker
- palmer
- passenger
- passerby
- pathfinder
- pilgrim
- pilot
- planter
- point
- precedent
- precursor
- predecessor
- primary
- prime
- railhead
- rubberneck
- rubbernecker
- sailor
- sapper
- scout
- settler
- sightseer
- sooner
- spearhead
- squatter
- start
- straphanger
- tourer
- tourist
- trailblazer
- transient
- traveler
- trekker
- trend-setter
- trigger
- tripper
- van
- vanguard
- viator
- voyager
- wayfarer
pioneer (v.)
- actuate
- begin
- camper
- coin
- create
- develop
- discover
- engineer
- establish
- fare
- found
- front
- guide
- harbinger
- head
- herald
- inaugurate
- initial
- initiate
- innovate
- institute
- introduce
- invent
- launch
- lead
- line
- mountaineer
- originate
- pilot
- point
- precede
- prime
- revolutionize
- rubberneck
- scout
- spearhead
- start
- trigger
- van