booster Synonyms
Another word for booster
• noun (Context 1)
A supplementary dose of a vaccine or immunizing agent administered periodically to maintain or renew immunity from an earlier dose.
"The clinic recommends getting a tetanus booster shot every ten years to ensure continued protection."
• noun (Context 2)
An auxiliary rocket engine, amplifier, or mechanical device used to provide initial thrust, extra power, or increased signal strength.
"The spacecraft's solid-fuel boosters detached cleanly two minutes after liftoff."
• noun (Context 3)
An enthusiastic supporter, promoter, or fundraising backer of a school, sports team, town, or organization.
"The high school athletic boosters raised enough money to purchase new uniforms for the track team."
• noun (Context 4)
A cushion or portable seat placed on top of a regular chair or vehicle seat to raise a young child to a safe height.
"The restaurant provided a sturdy plastic booster seat so the toddler could reach the table comfortably."
Opposites of booster
The opposite of booster shifts depending on context. Common opposites include: