What does acquiescence mean in copyright context?

In the context of copyright, acquiescence refers to a scenario where the copyright owner has allowed or encouraged others to use their work without asserting their rights. This can occur when a copyright owner does not take action against unauthorized uses of their work, effectively implying consent through inaction or behavior. By allowing such usage, they may diminish their ability to enforce their rights later on, as prolonged permission can be interpreted as acceptance.

The other options do not align with the definition of acquiescence in copyright. Taking legal action suggests a proactive stance contrary to acquiescence, and actively promoting the work implies a more affirmative engagement rather than tacit acceptance. Finally, losing rights indicates a complete forfeiture of copyright ownership, which is a separate legal concept unrelated to acquiescence.