To come into view.
To come out of a situation, object or a liquid.
“He emerged unscathed from the accident.”
“The Soviet Union emerged from the ruins of an empire.”
“The submarine emerged from the ocean.”
To become known.
“Gradually the truth emerged.”
To plunge into, under, or within anything, especially a fluid; to dip; to immerse.
To disappear by entering into any medium, as a star into the light of the sun.