Definition of "plein" [plein]

• Plan. (adjective)
• To complain. See plain. (verb)
• Full; complete. (adjective)

Gnu Collaboartive International Dictionary of English: licensed under The Code Project Open License (CPOL)

• "Conversations with artists and online forums at art Web sites indicate considerable disagreement and even instances of one painter accusing another of cheating using the term plein air."
• "Then, he stayed up all night in his hotel room, completing paintings that he called plein air."
• "Braise, by the way, is in "plein forme" or great shape."