1. A shared channel or passage, typically used in anatomy to refer to a duct that serves a common function
The common duct carries bile from the liver to the small intestine.
O canal comum transporta bile do fígado para o intestino delgado.
2. A shared waterway or communication channel used by multiple parties
The canal comum was used by both villages for irrigation.
O canal comum era utilizado por ambas as aldeias para irrigação.