1. plural of demeanour; outward behavior or bearing; the way a person conducts themselves
Usage: British spelling; American spelling is ‘demeanors’

Examples

• The students’ calm demeanours impressed the visiting officials.
• Their professional demeanours helped them succeed in the interview.
• The witnesses described the suspects’ threatening demeanours.
• Despite the chaos, the nurses maintained their composed demeanours.
• The children’s cheerful demeanours brightened everyone’s day.
• His nervous demeanour suggested he was hiding something.
• The team’s confident demeanours reflected their thorough preparation.