To perform or perhaps in the office; use power or impact; act: with on or upon regulating the item associated with action: as, the sculptor operates from the clay or marble of which he tends to make his numbers; a machine runs from the garbage posted to it.
Specifically, in surgery, to perform some handbook act upon the human body of client, usually with instruments, with a view to displace soundness or health, or perhaps to boost the physical condition.
To produce an effect; act; work: made use of absolutely.
to make the required or proper result; work successfully; be effectual in producing the result meant: as, the medication operated really.
to continue speculative transactions; purchase and sell speculatively: within: as, to work in stocks; to operate in oil.
Synonyms 3 and 4. Act, Work, etc. See act.
To effect; create by action and/or exertion of force or energy; accomplish as a representative; cause.
To direct or superintend the working of; cause to move or perform the acts desired; work: as, to use a device.