Synonyms for operation

noun activity by a military or naval force (as a maneuver or campaign)

noun a medical procedure involving an incision with instruments; performed to repair damage or arrest disease in a living body

noun a process or series of acts especially of a practical or mechanical nature involved in a particular form of work

noun process or manner of functioning or operating

noun (psychology) the performance of some composite cognitive activity; an operation that affects mental contents

noun (mathematics) calculation by mathematical methods