"Billie Eilish - 6.18.18 (Traducción al Español)" is a song about an ending relationship and the struggle to let go. The lyrics describe a sense of desperation and longing for closure.

In the first verse, the singer reflects on how their time together has come to an end. They mention that the person's eyes are closed, indicating their emotional distance. The singer laments not being able to express everything they needed the person to know. They feel a sense of darkness and emptiness, symbolized by the absence of the moon. Despite their love, they realize they cannot bring the person back home or fix the relationship.

The chorus reveals the singer's hesitation to move on. They acknowledge that there are no more stars left to find, suggesting they have exhausted all possibilities. They express being late in letting go and admit that they would love to release the person from their thoughts. However, their love for them remains strong and unspoken, even though it's hard to handle.

In the second verse, the singer finds themselves alone, waiting for a response. They find solace in crying at home, realizing that they should have known better and said goodbye earlier. They were hopeful for more time but now have come to see the futility of it.

The bridge reflects on the youthful nature of their relationship, emphasizing their young age and the intensity of their emotions. The pain and loss experienced on June 18th serve as a reminder of the person's inability to stay. The singer is driven to the point of wanting to pray but expresses disbelief in God, seeing Him as a lie.

The final chorus reiterates the lack of stars to find and the singer's desire to let go. However, they emphasize their deep love that continues to grow despite the distance and the fact that the person will never fully know the extent of their feelings. There is a sense of longing and a bittersweet acceptance that they must move on.