"Take it on the chin" is a commonly used idiom that means to face a difficult situation or criticism bravely without showing any signs of weakness. However, there are various phrases that can be used interchangeably with this idiom to convey the same meaning, such as "stay strong", "hold your ground", "grin and bear it", "put up a brave face", "keep your chin up", "tough it out", and "face the music". Each of these phrases emphasizes the importance of being resilient and determined in the face of adversity, while acknowledging that tough times may be inevitable.