It implies something physically resting at the highest point of an object or surface.

Physical Position

This usage is very literal and meant to describe a physical location.

Literal Use

It helps create a mental picture of where items are located in relation to each other.

Refers to someone's ability to oversee or handle responsibilities effectively.

Suggests staying ahead or not falling behind in duties or knowledge.

This phrase is metaphorical when related to control or management, not describing physical placement.

Used to discuss additional perks or bonuses beyond what is expected.

Highlights surplus or excess when compared to a standard or basic amount.

It highlights the importance of keeping updated with current information.

Being updated requires ongoing effort to learn and process new information.