The sliding weight on a steelyard.
- A member of the pea family.
- A Eurasian climbing annual vine (Pisum sativum) cultivated in all temperate zones, having compound leaves with terminal leaflets modified into tendrils and globose, edible seeds enclosed in a green, elongated pod.
- The seed of this plant, used as a vegetable.
- The unopened pods of this plant.
- Any of several plants of the genus Lathyrus, such as the sweet pea or the beach pea.