When a group of people walk side by side.
it means walking side to side
There are certain social graces that apply when you are out in public or in the street. These social graces include walking no more than two abreast and letting others pass you from behind as you are walking.
abreast - side by side The parade had six drummers marching abreast.
Being abreast means being side by side.
draw abreast = gleichziehen
The origin of abreast is late Middle English: from A- 'in' + breast.
The brass band passed by, marching four abreast.
We have been abreast of this situation for a time now.
I have information here to keep you abreast of the situation, sir.
The president wants to stay abreast of the most recent developments in Libya. OR The protest marchers walked arm-in-arm, five abreast down the street.
uniform
Together