pep·per·tree also pepper tree 
(pĕpər-trē′)
(pĕpər-trē′)n.
Any of several evergreen trees of the genus Schinus, especially the Brazilian peppertree or S. molle, native to South America and often planted as an ornamental, having yellowish-white flowers and small reddish fruit.
- on the mend
- on the money
- on the move
- on the nose
- on the off chance
- on the onehand
- on the order of
- on the other hand
- on the outs
- on the part of
- on the prowl
- on the qui vive
- on the rack
- on the rag
- on-the-record
- on the right foot
- on the road
- on the rocks
- on the ropes
- on the run
- on the same wavelength
- on-the-scene
- on the shelf
- on the side
- on the sly