broadside

One side of a ship above the waterline.

All the guns on one side of a warship.

The simultaneous firing of these guns.

Broadside! What fools to face our guns!

A forceful attack, whether written or spoken.

Although slaveholders managed - through a combination of political compromise and ideological broadside - to contain the threat of a major anti-slavery compaign by fellow Southerners, planters could never be totally sure of non-slaveholders' loyalty to the social order.

Fernández's diplomatic broadside follows the British government's decision last month to name a large frozen chunk of Antarctica after the Queen – a gesture viewed in Buenos Aires as provocative.

A large sheet of paper, printed on one side and folded.

Sideways; with the side turned to the direction of some object.

[...] the slight fluctuations [in speed] were due to a strong side-wind, which caught the train broadside along exposed stretches of the line.

1977-1980, Lou Sullivan, personal diary, quoted in 2019, Ellis Martin, Zach Ozma (editors), We Both Laughed In Pleasure They were going some 60-80 mph [on a motorcycle] down a 30 mph street, hit a car broadside & Pat pushed against Bert, who was crushed into the side of the car.

To collide with something side-on.