operation
[ˌɒpəˈreɪʃn]noun
| 1. |   [planned activity - police, rescue, business]
  operación  f
 [ - military] maniobra f  | 
| 2. | [running - of business] administración f | 
| 3. |   [functioning - of machine]
  funcionamiento  m
 to be in operation [machine] estar funcionando [law, system] estar en vigor  | 
| 4. |   MED
  operación  f, 
 intervención  f 
 quirúrgica
 to have an operation (for/on) operarse (de)  | 
                            
                            
                            
                            
            
                