To make a debut in a new field.
To express one's opinion openly.
To come out of the closet.
To walk onto the field at the beginning of an innings.
To end up or result.
To be deducted from.
To go on strike, especially out of solidarity with other workers.
To be discovered, be revealed.
To become visible in the sky as a result of clouds clearing away.
Used other than figuratively or idiomatically: see come, out.
To be published, be issued.
To make one's début.
A person’s or thing’s first appearance before society or another audience; one’s “maiden voyage”.