Fetching details from the dictionary...

shade; shadow
behind (something); other side; back
the background; behind the scenes; behind someone's back
gloom (in someone's expression, nature, etc.); darkness
「翳」 has other readings with different meanings.
大きな木の翳で涼しく休んだ。
I rested cool in the shade of a large tree.
建物の翳が道路に長く伸びていた。
The shadow of the building stretched long across the road.
翳のある場所に花を植えてみよう。
Let's try planting flowers in a shaded spot.