at or to or toward the back or rear; "he moved back"; "tripped when he stepped backward"; "she looked rearward out the window of the car"後ろあるいは後部で、あるいは、のほうに向かって後方へ
例:She looked rearward out the window of the car. 彼女は車の窓から後ろを見た。
directed or moving toward the rear; "a rearward glance"; "a rearward movement"後部へ導かれる、または移動する後方に向けた