What does "hatch" mean?

Additional senses

1. 2.To produce, as young, from an egg or eggs by incubation, or by artificial heat; to produce young from (eggs); as, the young when hatched. Paley. As the partridge sitteth on eggs, and hatcheth them not. Jer. xvii.
2. 3.For the hens do not sit upon the eggs; but by keeping them in a certain equal heat they [the husbandmen] bring life into them and hatch them. Robynson (More's Utopia).
3. 4.To contrive or plot; to form by meditation, and bring into being; to originate and produce; to concoct; as, to hatch mischief; to hatch heresy. Hooker. Fancies hatched In silken-folded idleness. Tennyson.
4. 5.To produce young; -- said of eggs; to come forth from the egg; -- said of the young of birds, fishes, insects, etc.
5. 6.The act of hatching.
6. 7.Development; disclosure; discovery. Shak.
7. 8.The chickens produced at once or by one incubation; a brood.
8. 9.A door with an opening over it; a half door, sometimes set with spikes on the upper edge. In at the window, or else o'er the hatch. Shak.
9. 10.A frame or weir in a river, for catching fish.
10. 11.A flood gate; a a sluice gate. Ainsworth.
11. 12.A bedstead. [Scot.] Sir W. Scott.
12. 13.An opening in the deck of a vessel or floor of a warehouse which serves as a passageway or hoistway; a hatchway; also; a cover or door, or one of the covers used in closing such an opening.
13. 14.(Mining) An opening into, or in search of, a mine. Booby hatch, Buttery hatch, Companion hatch, etc. See under Booby, Buttery, etc. -- To batten down the hatches (Naut.), to lay tarpaulins over them, and secure them with battens. -- To be under hatches, to be confined below in a vessel; to be under arrest, or in slavery, distress, etc.
14. 15.To close with a hatch or hatches. 'T were not amiss to keep our door hatched. Shak