1. a heated disagreement or argument
2. an assertion or claim made in an argument
3. the act of competing or striving for something

Examples

• The budget proposal sparked contention among the board members.
• Her main contention was that the policy would harm small businesses.
• The two teams are in contention for the championship title.
• There was bitter contention over the inheritance.
• His contention that the earth is flat was quickly dismissed.
• The issue remains a source of contention between the neighbors.
• Several candidates are still in contention for the position.