Every language has a plethora of synonyms to express various concepts and ideas. Say/wave/kiss goodbye to something is one such phrase that can be replaced with several alternatives. For instance, you can bid farewell, bid adieu, take leave, or say farewell. Similarly, waving goodbye can be replaced with beckoning your fingers, giving a hand signal, making a waving motion, or motioning goodbye. Lastly, kissing goodbye can be replaced with pecking farewell, giving a smooch, blowing a kiss, or expressing affectionate adieu. Using synonyms not only enriches the vocabulary but also conveys the message creatively.