operation

opération, intervention chirurgicale

Traitement où un médecin ouvre le corps pour réparer ou retirer quelque chose.

En anglais simple : 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?

Comment l'utiliser : an operation on something (He had an operation on his knee.); an operation to do something (She needs an operation to remove the lump.)

Synonymes : surgery, surgical procedure

Expressions courantes : have an operation, heart operation, operation on something, emergency operation

opération, mission

Action organisée d’un groupe pour atteindre un objectif, notamment dans l’armée, la police ou les secours.

En anglais simple : 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.

Synonymes : mission, campaign

Expressions courantes : military operation, rescue operation, police operation, launch an operation

entreprise, activité

Une entreprise ou une partie de celle-ci, avec les activités qu’elle mène.

En anglais simple : 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.

Synonymes : business, enterprise

Expressions courantes : business operation, overseas operation, expand an operation, small operation

fonctionnement

La manière dont une machine fonctionne, ou le fait qu’elle soit en marche.

En anglais simple : 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.

Comment l'utiliser : in operation (Keep your hands away while the machine is in operation.); the operation of something (The guide explains the operation of the pump.)

Synonymes : functioning, working

Expressions courantes : in operation, safe operation, automatic operation, operation of something

opération

Un calcul sur des nombres, comme l’addition ou la division, représenté par un signe mathématique.

En anglais simple : 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.

Synonymes : calculation

Expressions courantes : mathematical operation, basic operation, operation symbol, arithmetic operation

fonctionnement, mise en œuvre

La manière dont une activité, un processus ou un système est mis en œuvre.

En anglais simple : 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.

Comment l'utiliser : the operation of something (We reviewed the operation of the new rules.)

Synonymes : working, functioning, procedure

Expressions courantes : method of operation, mode of operation, normal operation, operation of something