A swordfish is a big sea fish with a long flat pointed bill. Grill swordfish, catch a swordfish, a swordfish steak.
The bill is flat rather than round, which is the difference from a marlin, and it is used to slash through shoals rather than to spear. It warms its eyes and brain above the surrounding water, which sharpens its vision in cold deep hunting.
1nounswordfishA large sea fish with a long flat bill.
“The fishermen struggled for hours to pull in a huge swordfish.”
swordfish is a fish.
Old English sweordfisc is sword plus fish, named for the shape of the bill.
Old English
*sweordfisċ
Middle English
swerdfysche
English, today
swordfish
From Middle English swerdfysche, from Old English sweordfisċ. Equivalent to sword + fish.
Etymology from Wiktionary, CC BY-SA
Practised in Insects & Sea Life