to set up (a house, store, etc.); to build; to have at the ready (e.g. a gun); to hold in preparation (e.g. a camera); to adopt a posture; to assume a stance; to put on an air
Examples (3 in total)
試練が待ち構えている。
Trials lie in wait.
すでに相手は待ち構えている。
The opponent is already lying in wait.
そこに待ち構えていたのは、ある意味、異様な光景だった。
What was lying in wait there was, in a sense, a strange sight.