- 比翼双飞 bǐyìshuāngfēi chicken dishthe name of a specific sweet and sour chicken wing dish.
- 比翼齐飞 bǐyìqífēi fly togetherto fly wing to wing; to work, advance, or cooperate in tandem
- 在天愿做比翼鸟，在地愿做连理枝 zàitiānyuànzuòbǐyìniǎo, zàidìyuànzuòliánlǐzhī eternal lovea poetic vow to be together forever, like birds flying wing to wing or trees with intertwined branches; wishing for eternal conjugal bliss