Select the most appropriate meaning of the given idiom.

Above one's head

Beyond one's understanding

The most appropriate meaning of the given idiom "above one's head" is beyond one's understanding.

It is an idiom that is used to describe something that is too difficult or complicated to understand. The idiom is thought to have originated from the idea of something being literally above someone's head, and therefore out of their reach.

For example, you might say "That explanation was above my head." This means that you did not understand the explanation.

The other options are not accurate descriptions of the meaning of the idiom.

• To be very tall: This is not related to the meaning of the idiom.
• Intimate and personal: This is not related to the meaning of the idiom.
• Overhead expenses: This refers to expenses that are incurred by a business but are not directly related to the production of goods or services.