Meaning of “a shot in the arm” in the English Dictionary

british dictionary

"a shot in the arm" in British English

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a shot in the arm

something that has a sudden and positive effect on something, providing encouragement and new activity:

Fresh investment would provide the shot in the arm that this industry so badly needs.

(Definition of “a shot in the arm” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"a shot in the arm" in American English

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a shot in the arm

something that has a sudden, strong, positive effect on something:

Winning this award has been a big shot in the arm for the students.

(Definition of “a shot in the arm” from the Cambridge Academic Content Dictionary © Cambridge University Press)

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