The borders of anything which has a mouthlike aspect.(noun)
A contrarian.(noun)
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Use "jaws" in a sentence
"He looked to me sort of physically wrestling with what he called the jaws that had got him and had got her."
"It warms necks and backs, resonates in jaws and temples, and rings in chests and legs."
"Looking visually back on the last three presidents, from the entitled jaws of Clinton to the dumb, glazed emptiness of Bush's head and eyes to the now-furious Obama, it is easier to find a worthwhile summer movie than a psychologically appropriate person to be our President."