The 'dark' group
These nouns refer to light and shade.
in darkness* in daylight* in shade in shadow* in the candlelight in the dark in the gloom in the headlights in the lamplight in the moonlight in the shade in the shadows in the sun in the sunlight in the torchlight
She'll be all alone in the dark.
They always attacked in daylight in the past.
It glitters with pale blue tiles that shine eerily in the moonlight.
The nouns marked with an asterisk (*) also have the pattern into N.
Power cuts regularly plunge homes into darkness.