A group of crabs is commonly called a Barrel. Other collective nouns you may see include Cast and Cluster.
Collective nouns are singular words used to describe a group of individuals or things. In the case of crabs, several different collective nouns can be used to represent various group sizes or specific behaviors. These collective nouns paint a vivid picture of how crabs interact and thrive in their unique underwater habitats. One commonly used collective noun for crabs is a "cast." This term refers to a gathering or assemblage of crabs in one place, particularly when they converge in large numbers. When referring to this vast and busy cluster of crabs, one can imagine a remarkable scene of lively crustaceans moving about, each crab contributing its part to the motions of the collective cast. Another collective noun associated with crabs is a "combs." This term is used specifically for groups of small or young crabs, bustling together in search of food or playfully exploring their environment. Picture a combs of young crabs making their way along a sandy shore, their miniature claws clicking as they embark on their independent crab endeavors. For a more formal and localized gathering of crabs, the collective noun used is often a "congress." This term denotes a group of crabs assembled and engaging in various activities within a defined dominion. With crabs crawling all around, organizing themselves instinctually, this congress specialises in accomplishing specific goals, such as foraging or protecting their territory. Lastly, with a focus on a particular crab activity, the solitary and mesmerizing process of crab molting gives rise to the collective noun "shedding." This term signifies crabs of different sizes and species engaging in molting simultaneously, presenting a visually stunning but precarious moment. Surrounding the shedding area, these crabs congregate closer together in what can be referred to as a shedding, sharing this essential renewal experience. Collective nouns offer enchanting and descriptive ways to understand a group of crabs collectively. Whether portrayed as a cast, combs, congress, or shedding, each collective noun reflects the specific dynamics, behaviors, or stages of life that these magnificent marine creatures exhibit when they come together.
Known collective nouns for Crabs include: