1. against; in opposition to
Usage: formal or legal usage

1. a person or thing that is opposed to or in conflict with another
Usage: often used in phrases like 'pro and contra'

1. opposed; contrary
Usage: less common in modern English; often replaced by 'contrary' or 'opposing'

Examples

• The arguments pro and contra were carefully weighed by the committee.
• She spoke contra to the prevailing opinion in the room.
• The contra position was presented by the opposing counsel.
• In accounting, a contra account reduces the value of a related account.
• He argued contra the proposed legislation.
• The two sides presented their pro and contra views at the debate.