1. a person who expresses disagreement with or opposition to something
2. a person who refuses to serve in the military for moral or religious reasons
Usage: often used in the phrase ‘conscientious objector’

Examples

• The city council listened to several objectors before voting on the new development.
• As a conscientious objector, he performed alternative service instead of military duty.
• The environmental objectors organized a peaceful protest outside the factory.
• She was the only objector to the proposed budget cuts.
• Many objectors cited religious beliefs as their reason for refusing combat service.
• The planning committee addressed concerns raised by local objectors.
• He registered as a conscientious objector during the Vietnam War.