- an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
- an overlapping arrangement of five petals or leaves, in which two are interior, two are exterior, and one is partly interior and partly exterior.
- a group of five objects arranged in the shape of a rectangle with one at each of the four corners and the fifth in the centre
- a quincuncial arrangement of sepals or petals in the bud
- an aspect of 150° between two planets
