[yǐng zi]
(影) shadow; reflection
One can see the reflection of the tower in the water.
塔的影子倒映在水中。
(模糊的形象) trace; sign; vague impression
Now that you remind me of this matter, I have a vague impression of it.
这事经你一提醒, 我脑子里才有点儿影子。
I haven't the dimmest recollection of it.
脑子里一点影子也没有。
(人的踪影) the trace of a person's presence; figure
never catch a glimpse of a person the whole day
整天不见某人的影子
I waited a long time, but not a soul turned up.
我等了半天连个影子也没见到。