How to pronounce plains:
Example: "They emerged from the woods onto a vast open plain"
Example: "The answer is obviously wrong"
Example: "The effects of the drought are apparent to anyone who sees the parched fields"
Example: "Plain water"
Example: "The plain and unvarnished truth"
Example: "A plain hair style"
Example: "A homely child"
Example: "My mother complains all day"