upas /ūˈpəs/

1. (in full uˈpas-tree) a fabulous Javanese tree that poisoned everything for miles around (mythology)
2. A Javanese tree (Antiaris toxicaria) of the mulberry family, yielding sap used as poison
3. The poison of its latex

• one-way glass
• one-way mirror
• one way or the other
• one with another
• one-woman
• one-worlder
• one-worlders
• one-worldism
• oneyer
• oneyers
• oneyre
• oneyres
• onfall
• onfalls
• on file
• on fire
• on firm ground
• onflow
• onflows
• on foot
• on-going
• ongoing
• ongoings
• on guard
• on hand