1. to disagree with or resist (a plan, idea, or system)
Usage: third person singular present tense of ‘oppose’
2. to compete against (someone) in a contest or conflict
Usage: third person singular present tense of ‘oppose’

Examples

• She opposes the new tax proposal.
• The senator opposes cuts to education funding.
• Our team opposes the defending champions tonight.
• He always opposes any change to the rules.
• The union opposes the company’s latest offer.
• The candidate opposes her rival in the debate.
• The group opposes construction of the new highway.