The exact origin of the idiom "finger in the air" is uncertain, but it likely stems from the idea of testing the wind's direction by raising a finger and feeling the airflow. This action is often used metaphorically to represent making a rough estimate or guess based on instinct or intuition rather than precise measurement or calculation.

تعريف ومعنى "finger in the air"في اللغة الإنجليزية

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