Garantías translates to "guarantees." It's an interesting word because it's not commonly found in romantic song lyrics, which often focus on emotions rather than contractual terms.
In this song, the artist sings about giving his heart "sin garantías" (without guarantees), implying a complete and unconditional surrender in love, without expecting anything in return or any assurance of success. This unexpected use of a more formal word in a romantic context makes it stand out.
Pavel Núñez kicks off "Tu Regreso" by setting the scene, telling us this is the other bachata on the album, made for anyone who wants someone to come back, or maybe just to stay. It's a song about wanting more than just a physical presence. He sings, "no me des tu cuerpo sin sentir en compañía / porque si no quieres amor de qué me serviría" [don't give me your body without feeling companionship / because if you don't want love, what good would it do me?]. He's not interested in a casual fling; he wants a genuine connection.
He makes it clear he's looking for a deeper bond, not just fleeting pleasure. He says, "no quiero ser fan de mi cuartel yo quiero más / aunque entregues noches de placer quiero más tu regreso" [I don't want to be a fan of my barracks, I want more / even if you give nights of pleasure, I want your return more]. It's a plea for true commitment and for the person to come back, bringing their thoughts and feelings, not just their body. He's giving his all, even "las llaves de mi honor" [the keys to my honor], and wants the same in return. He wants their return, not just their presence.