This is the 8707th most frequent Spanish word.
siguen
"Siguen" means "they follow" or "they continue."
In this sentence, 'siguen' is used as the present tense form of the verb 'seguir', meaning 'to follow'. It refers to an action being currently performed by the subject (ellos).
Ellos siguen a su líder con confianza.
They follow their leader with confidence.
Here, 'siguen' is part of an expression that describes continuity. It conveys that the lights continue to be on.
Las luces siguen encendidas durante la noche.
The lights remain on throughout the night.
In this context, 'siguen' is used to indicate persistence or continuation of an action over time.