A closed system would be full of freon without any leaks and a opened system would have no freon or has leaks...........
is the styllable hi opened or closed
The opposite of the adjective closed is open. The opposite of the verb closed is opened.
closed
closed
In a healthy early pregnancy, the cervix is normally closed. A closed cervix helps protect the developing pregnancy by keeping the uterus sealed against infection and supporting the growing baby. As pregnancy progresses, the cervix usually remains closed until the later stages of labor, when it gradually softens, shortens (effaces), and dilates (opens) to allow childbirth. If there are concerns about cervical changes, bleeding, or pain during pregnancy, it's important to consult an obstetrician or gynecologist promptly for evaluation.
closed
they should be closed
when a door is "closed" it can not be opened by pushing or pulling
Santa Ines is opened. It is not closed to answer your question.
an egg
egg
a switch