To turn out; to happen; to develop.
To undo a folding.
To release from a fold or pen.
To open (anything covered or closed); to lay open to view or contemplation; to bring out in all the details, or by successive development.
To reveal.
In functional programming, a kind of higher-order function that is the opposite of a fold.
To turn out or unfold; to evolve; to progress.
To roll out or debut anything.
To open up by unrolling.
To unroll or release something that had been rolled up, typically a sail or a flag.