An immature, naïve or inexperienced person.
A young bird which has just developed its flight feathers (notably wings).
An insect that has just fledged, i.e. undergone its final moult to become an adult or imago.
Emergent or rising.
Untried or inexperienced.
An inexperienced person; a novice.
A newcomer or arriviste to the region in the American frontier (Old West and Wild West).