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Etymology
From 🇰🇲. Sense 1 and 2 allude to these fishes' large and distinctive appendages that resemble a blade. Sense 3 and 4 stem from the fact that these fishes' bauplans are slender and elongated, much like a blade.

Noun

 * 1) a sawfish
 * 2) a swordfish
 * 3) a wolf herring
 * 4) certain species of cutlassfish (esp. )
 * 1) certain species of cutlassfish (esp. )
 * 1) certain species of cutlassfish (esp. )