CANTHUS

PRONUNCIATION: (KAN-thuhs)

MEANING: noun: Either of the two corners of the eye, specifically where the upper and lower eyelids meet, known as the inner and outer canthus.

ETYMOLOGY: From Latin canthus, from Greek kanthos (corner of the eye). Earliest documented use: 1646.
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CAN'T THUS - impossible to do it this way

CAN THIS - Put this one up for storage. Or maybe fire it.

CAN, THUG - You'll get a jail sentence for sure this time, punk...