Remembranza translates to "remembrance" or "memory". While similar to recuerdo, remembranza often carries a more poetic or nostalgic connotation, suggesting a cherished or lingering memory rather than just a simple recollection.
In "Juventud", Carlos Gardel sings of a "Tímida remembranza que añoraré" (Timid remembrance that I will long for). This word beautifully captures the bittersweet feeling of looking back on a past love or youth with a sense of longing and tenderness, making it a more evocative choice than a common synonym.