Refers to military camouflage patterns or the act of disguising something to blend into surroundings. Often used in compounds like 迷彩服 (camouflage clothing).
The soldiers wore camouflage uniforms and hid in the forest.
この車両は砂漠用の迷彩が施されている。
This vehicle is painted with desert camouflage.
They camouflaged the tank to deceive the enemy's eyes.
He was wearing a jacket with a camouflage pattern.