(bound form) honest and just; upright; describes a person of integrity. Common in words like 耿直 gěng​zhí and 耿介 gěng​jiè

(literary) (bound form) bright; brilliant; luminous. Used in classical contexts to describe light or heavenly bodies.

a Chinese surname

(bound form) dedicated; devoted; also describes being uneasy or distressed, as in 耿耿 gěng​gěng