1. [noun] Darkness.
2. [noun] (fantasy) A creature that lives in the dark.
3. [adjective] Dark; darkening.
4. [adjective] Obscure; done or happening 'in the dark' or unseen.
5. [adverb] In the dark; in obscurity.
6. [verb] Present participle of darkle
7. [adjective] Uncannily or threateningly dark or obscure; 'a darkling glance'; 'secret operatives and darkling conspiracies'-Archibald MacLeish.
8. [adjective] (poetic) occurring in the dark or night; 'a darkling journey'.