Monoecious” is translated as “single house,” meaning that male and female flowers are found on a single individual. This contrasts with the translation of dioecious, which is “double house.” This means that male flowers are on one plant and female flowers are on another plant.
What is a dioecious plant?
Dioecious plant species in Wikipedia. These plants produce a male plant and a female plant and not usually a single plant with both male and female parts (monoecious).