e.g. Vitamin gummies are immune boosters so that help the immune system get stronger.
e.g. The team's recent win has been a great morale booster.
e.g. Make sure your kids get all the booster shots needed during this flu season.
e.g. The electrician added a booster to the new circuit to increase the voltage.
e.g. Without rocket boosters, it would not be possible to successfully launch the rocket into space.
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