"plains" in the noun sense
1. plain, field, champaign
extensive tract of level open land
"they emerged from the woods onto a vast open plain"
"he longed for the fields of his youth"
2. knit, knit stitch, plain, plain stitch
a basic knitting stitch made by putting the needle through the front of the stitch from the lefthand side
"plains" in the verb sense
1. complain, kick, plain, sound off, quetch, kvetch
express complaints, discontent, displeasure, or unhappiness
"My mother complains all day"
"She has a lot to kick about"
Source: WordNet® (An amazing lexical database of English)
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