This is the 3879th most frequent Spanish word.
trabajó
"Trabajó" means "he/she/it worked" or "you (formal) worked."
The word 'trabajó' is used here in the past tense to narrate an action conducted by the subject in the past.
Él trabajó duro para completar el proyecto.
He worked hard to complete the project.
'Trabajó' indicates a specific completed action that took place yesterday.
Ayer trabajó en la oficina más tiempo del habitual.
Yesterday he worked longer than usual at the office.
Here, 'trabajó' reveals a past professional role held by the subject.