booster

renfort, amplificateur

Personne ou chose qui aide quelque chose à mieux fonctionner ou à devenir plus fort.

En anglais simple : A person or thing that helps something work better or become stronger.

• The win was a confidence booster.
• We bought a signal booster for the house.
• Local boosters helped raise money for the club.

Synonymes : supporter, enhancer

Expressions courantes : confidence booster, signal booster, morale booster

rappel

Dose supplémentaire d’un vaccin qui aide à rester protégé contre une maladie.

En anglais simple : An extra vaccine dose that helps keep you protected against a disease.

• I had a booster yesterday.
• The clinic offers tetanus boosters.
• When did you get your last booster?

Synonymes : booster dose, booster shot

Expressions courantes : booster dose, tetanus booster, get a booster

propulseur d’appoint

Fusée qui fournit une poussée supplémentaire pour faire monter un engin spatial ou envoyer un missile plus loin.

En anglais simple : A rocket that supplies extra force to help a spacecraft rise or a missile travel farther.

• The booster lifted the rocket.
• Two boosters separated shortly after launch.
• Engineers tested the missile's new booster.

Synonymes : booster rocket

Expressions courantes : rocket booster, solid-fuel booster, booster rocket

voleur, voleur à l’étalage

Personne qui vole des objets, surtout dans les magasins.

En anglais simple : A person who steals things, especially from shops.

• The guard caught a booster.
• Two boosters had stolen clothes from the shop.
• Police questioned the booster about the missing goods.

Synonymes : thief, shoplifter

Expressions courantes : catch a booster, booster stole something