From the given options, choose the one which gives the correct meaning / explanation for the expression
To beat the air
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → To make vain efforts
To beat the air means to make efforts that achieve nothing; to struggle in vain. Striking at empty air hits nothing, so the effort is wasted. Vain here means useless, without result.
Example: Arguing with him once he has made up his mind is only beating the air.