verb
(intransitive) To begin to brighten with daylight.
(intransitive, figurative) To start to appear or become obvious.
(intransitive, figurative) To begin to give promise; to begin to appear or to expand.
noun
(uncountable) The morning twilight period immediately before sunrise.
(countable) The rising of the sun.
(uncountable) The time when the sun rises.
(uncountable) The earliest phase of something.