Meanings of antitank gun in English

American antitank guns and dug-in Shermans had opened fire, but on what?

But there were no Egyptian enemy tanks or antitank guns in sight.

Suslov saw the flashes of antitank guns coming from the buildings.

Something I could carry concealed without looking like I was smuggling antitank guns on the bus?

Antitank gun, Sarge thought.

There were now three lines of interconnected defenses, all supported by antitank guns, dug-in tanks, and tank destroyers, and protected artillery.

Anything, they thought, but the damn German 88 mm antitank guns that could instantly turn their frail craft into flaming coffins.