up-gun

transitive

(transitive) To equip with additional guns or more powerful guns.

Japanese Meaning

追加の銃や、より強力な銃を装備する

The navy decided to up-gun several patrol boats ahead of the mission.

海軍は作戦に先立ち、数隻の哨戒艇により強力な火砲を装備することを決めた。

Sense（1）

(transitive) To equip with additional guns or more powerful guns.

Hitherto, up-gunning British tanks had been prevented because of a basic design parameter.

up-guns

（ present singular third-person ）

up-gunning

（ participle present ）

up-gunned

（ participle past ）

up-gunned

（ past ）