When it comes to notifying others in advance, there are several synonyms you can use instead of saying "giving advance notice". Some alternatives include providing prior notice, giving ample warning, offering advanced notification, giving a heads up, and alerting someone ahead of time. All these synonyms convey the same idea of giving someone enough time to prepare for a future event or change. Using these terms can help you avoid repetition and make your communications more varied and engaging. Whether you're sending an email, writing a memo, or speaking in person, these synonyms can help you effectively communicate your message.