From Longman Dictionary of Contemporary Englishdarkendark‧en /ˈdɑːkən $ ˈdɑːr-/ ●○○ verb 1 [intransitive, transitive]DARK to become dark, or to make something dark The sky darkened and a few drops of rain fell. a darkened theater The evening shadows darkened the room.2 [intransitive, transitive]DISAPPOINTED to become less hopeful or positive, or to make something like this As he got drunker, his mood darkened.3 [intransitive] if someone’s face darkens, they start to look angry The captain’s face darkened as he read.4 → never darken my door again→ See Verb table
Examples from the Corpus
darken• When I woke up, the room was darkening.• In a few minutes the sky darkened and heavy rain began to fall.• His eyes had immediately darkened, and his entire body had taken on an aggressive stance.• The skies darkened and the wind grew stronger.• As for the guy with the artificially darkened beard, I got news for you, pal.• Even with this stratagem the blue of sky and the green of palm trees is darkened considerably.• Being a violet blue, it can be darkened further with a yellow-orange.• With the economy entering a slump, the computer industry's future could darken further.• She sat in the small darkened living room in the ugly little house in Palo Alto.• How extraordinary, he thought, entering the darkened room.• We walked along the shore as the sun's last rays winked over the darkening sea, then headed for home.• A cleaning solution shouldn't darken the wood.• The news darkened their view of the situation.• Any minute now his eyes would darken until they seemed almost black with the sheer emanation of his will. 