The word "bye-byes" typically means goodbyes or farewells, but its antonyms would be words that connote greetings or hellos. Such words could include "salute," "welcome," "hello," "greeting," or "meet." Instead of saying "bye-byes," one could use these words to express sentiments of welcoming, introducing oneself or others, and initiating a conversation or social interaction. Using antonyms for "bye-byes" can make one's communication more positive and welcoming, creating a more engaging and friendly atmosphere. By using antonyms, one can show that they are eager to make new connections and acquaintances rather than saying their final farewells.