1. Experienced in and wise to the ways of the world

See also: sophisticated

• pro-am
• pro-American
• pro-choice
• jackanapes
• jackaroo
• jackass
• jackass bat
• jackass penguin
• jackboot
• jackdaw
• jackeroo
• jacket
• jacket crown
• jacket potato
• jackfruit
• jackfruit tree
• jackhammer
• Jackie Robinson
• jacking off
• jackknife
• jackknife clam
• jackknife-fish
• jacklight
• jackpot
• jackrabbit