What does swap mean on Ledger Live?

Could you please clarify what exactly is meant by the term "swap" within the context of Ledger Live? I'm a bit confused as to how it relates to cryptocurrency transactions and whether it's a feature that allows users to exchange one cryptocurrency for another directly within the Ledger Live platform. Is there a specific process or fee associated with using this swap feature? I'd appreciate any additional information you could provide to help me better understand its purpose and functionality.