There is a total of 13249 clues beginning with pi
- Pioneering game company behind Tank and Tank II
- Pioneering game consoles
- Pioneering game systems
- Pioneering gangsta rap group
- Pioneering General Motors electric car
- Pioneering geneticist
- Pioneering German auto
- Pioneering golf shoe brand
- Pioneering heart surgeon
- Pioneering heavy-metal band
- Pioneering high jump maneuver of the 1960s
- Pioneering hip-hop group with the hit "Walk This Way"
- Pioneering hip-hop trio
- Pioneering hip-hop trio from Queens
- Pioneering hybrid
- Pioneering hypnotist
- Pioneering hypnotist Franz
- Pioneering ISP
- Pioneering immunologist von Behring
- Pioneering infomercial company
- Pioneering Internet company
- Pioneering internet provider
- Pioneering ISP
- Pioneering Italian sculptor
- Pioneering jazz standard of 1917
- Pioneering journalist Ifill
- Pioneering journalist Nellie
- Pioneering journalist ___ B Wells
- Pioneering labor leader Samuel
- Pioneering late-night host Jack
- Pioneering late-night talker
- Pioneering legend
- Pioneering magician Tony
- Pioneering map publisher William
- Pioneering mathematician
- Pioneering microcomputer
- Pioneering multi-sport star
- Pioneering muscle car
- Pioneering music player
- Pioneering musician in stereo ___ Light
- Pioneering name in car batteries
- Pioneering name in video games
- Pioneering nurse Barton
- Pioneering online magazine
- Pioneering organizer
- Pioneering pair preserver
- Pioneering parliamentarian
- Pioneering PCs
- Pioneering person
- Pioneering personal computers
- Pioneering photojournalist Jacob
- Pioneering pilot Earhart
- Pioneering Pittsburgh radio station
- Pioneering pollster Roper
- Pioneering programmer Lovelace
- Pioneering puffed cereal
- Pioneering pulp magazine
- Pioneering puppeteer
- Pioneering puppeteer Tony
- Pioneering quantum theorist
- Pioneering rap trio from Queens
- Pioneering razor with a pivoting head
- Pioneering reggae artist whose name is an exclamation
- Pioneering reporter Rogers St Johns
- Pioneering rocket scientist Wernher von ___
- Pioneering Russian spacecraft series
- Pioneering sci-fi play
- Pioneering scientist Robert
- Pioneering sculptor Asawa or justice Bader Ginsburg
- Pioneering Seattle grunge band
- Pioneering show shifter
- Pioneering shrink
- Pioneering silent director Weber
- Pioneering sitcom
- Pioneering skater Paulsen
- Pioneering sneakers
- Pioneering sort
- Pioneering stand-up comedian
- Pioneering star of 17-Across
- Pioneering step
- Pioneering stereo headphone brand
- Pioneering stop-motion animation film
- Pioneering synthesizer brand
- Pioneering synthesizers introduced in the 1960s
- Pioneering terrace farmers of old
- Pioneering text adventure game
- Pioneering thrash metal band with its own music festival, Gigantour
- Pioneering Toyota
- Pioneering TV brand
- Pioneering TV comedian
- Pioneering TV producer
- Pioneering TVs
- Pioneering US feminist
- Pioneering underground publication of the 1960s
- Pioneering urbanologist Jane
- Pioneering video game
- Pioneering video game company
- Pioneering video game of 1972
- Pioneering video game systems
- Pioneering video-game machines