operation

operación, intervención quirúrgica

Tratamiento en el que un médico abre el cuerpo para reparar o extraer algo.

En inglés sencillo: Medical treatment in which a doctor cuts into the body to repair or remove something.

• My father needs an operation.
• The operation on her knee went well.
• How long will you stay in hospital after the operation?

Cómo se usa: an operation on something (He had an operation on his knee.); an operation to do something (She needs an operation to remove the lump.)

Sinónimos: surgery, surgical procedure

Expresiones frecuentes: have an operation, heart operation, operation on something, emergency operation

operación, misión

Actividad planificada de un grupo para alcanzar un objetivo, especialmente de militares, policías o equipos de rescate.

En inglés sencillo: A planned activity by a group working towards a goal, especially soldiers, police, or rescue workers.

• The rescue operation saved six people.
• Soldiers carried out the operation at night.
• Police launched an operation to find the stolen cars.

Sinónimos: mission, campaign

Expresiones frecuentes: military operation, rescue operation, police operation, launch an operation

negocio, operación

Un negocio o una parte de él, junto con las actividades que realiza.

En inglés sencillo: A business or part of a business, including the work it does.

• Their bakery is a small operation.
• The company expanded its overseas operations.
• She manages the firm's entire European operation.

Sinónimos: business, enterprise

Expresiones frecuentes: business operation, overseas operation, expand an operation, small operation

funcionamiento

La manera en que funciona una máquina o el hecho de estar funcionando.

En inglés sencillo: The way a machine works, or the state of working.

• The lift is back in operation.
• This button controls the operation of the fan.
• Read the instructions for safe operation before using the machine.

Cómo se usa: in operation (Keep your hands away while the machine is in operation.); the operation of something (The guide explains the operation of the pump.)

Sinónimos: functioning, working

Expresiones frecuentes: in operation, safe operation, automatic operation, operation of something

operación

Un cálculo con números, como sumar o dividir, representado por un signo matemático.

En inglés sencillo: An action with numbers, such as adding or dividing, shown by a mathematical sign.

• Addition is a basic mathematical operation.
• Which operation does this symbol represent?
• Perform the operations inside the brackets first.

Sinónimos: calculation

Expresiones frecuentes: mathematical operation, basic operation, operation symbol, arithmetic operation

funcionamiento, procedimiento

La manera en que se lleva a cabo una actividad, un proceso o un sistema.

En inglés sencillo: The way an activity, process, or system is carried out.

• Their method of operation was simple.
• The review examined the operation of the complaints system.
• Clear rules are essential for the smooth operation of the scheme.

Cómo se usa: the operation of something (We reviewed the operation of the new rules.)

Sinónimos: working, functioning, procedure

Expresiones frecuentes: method of operation, mode of operation, normal operation, operation of something