This is the 1294th most frequent Spanish word.
líneas
Lines.
In this sentence, 'líneas' refers to train tracks or railway lines.
Las líneas del tren fueron mejoradas recientemente.
The railway lines were recently upgraded.
Here, 'líneas' refers to the drawn marks on a surface, specifically parallel lines.
Dibuja líneas paralelas en el papel.
Draw parallel lines on the paper.
In this case, 'líneas' refers to communication lines, specifically for telephones.