Definitions from Wiktionary ( )

▸ verb:  (transitive) To make brighter or clearer; to illuminate.
▸ verb:  (intransitive) To become brighter or clearer; to brighten.
▸ verb:  (intransitive, now rare) To flash lightning, to give off lightning.
▸ verb:  (transitive) To emit or disclose in, or as if in, lightning; to flash out, like lightning.
▸ verb:  (archaic) To illuminate with knowledge.
▸ verb:  (transitive) To alleviate; to reduce the burden of.
▸ verb:  (transitive) To make light or lighter in weight.
▸ verb:  (transitive) To make less serious or more cheerful.
▸ verb:  (intransitive) To become light or lighter in weight.
▸ verb:  (intransitive) To become less serious or more cheerful.
▸ verb:  To descend; to light.

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