broad

broad in the beam wide in the hips. informal

☞ A beam was one of the horizontal transverse timbers in a wooden ship, and so the word came to refer to a ship's breadth at its widest point. It is from this sense that the current meaning of broad in the beam developed.

in broad daylight used generally to express surprise or outrage at someone's daring to carry out a particular act, especially a crime, during the day, when anyone could see it.

it's as broad as it's long there's no significant difference between two possible alternatives. informal