What is the origin of the idiom "big fish" and when to use it?

The origin of the idiom "big fish" is rooted in fishing terminology and the concept of catching fish of varying sizes. In the context of fishing, a "big fish" refers to a large, prized catch that stands out from the rest. The metaphorical extension of this term to describe an important or influential person likely emerged from the idea that a big fish in a pond or body of water stands out due to its size and significance. It is used to refer to a person who is important, influential, or powerful within a particular context or organization. It implies that the individual holds a prominent position or has a significant impact on others.

What is the origin of the idiom "big fish in a small pond" and when to use it?

The idiom "big fish in a small pond" is a metaphor that describes someone who is powerful or successful in a small or limited setting. The phrase is thought to have originated in the 19th century, when ponds were a common feature of rural landscapes. A big fish in a small pond would be able to dominate its environment and would be seen as a powerful and important creature. The phrase has since been used to describe a variety of situations, including political and business contexts.