Literature Reference: 双双新燕子，依旧已衔泥。—— 《双双燕·咏燕》 The pair of new swallows, as before, have carried mud in their beaks. Source from 'Shuangshuang Yan·Ode to Swallows'.
双: Two, a pair. Symbolizing abundance. It signifies double happiness.
双: Two, a pair. Symbolizing abundance. It signifies double happiness.
Meaning: Double signifies harmony, completeness, and happiness.