1. one that is in charge of passage through a gate.
2. one who monitors or oversees the actions of others.
3. A primary-care provider, often in the setting of a managed-care organization, who coordinates patient care and provides referrals to specialists, hospitals, laboratories, and other medical services.

1. A person who guards or monitors passage through a gate
2. A person or group who controls access to something or somebody
3. A common orange and brown butterfly with eyespots, Pyronia tithonus, of the Nymphalidae family.

1. someone who guards an entrance
2. someone who controls access to something