This is the 5206th most frequent Spanish word.
imaginó
"Imaginó" means "he/she/it imagined."
The word 'imaginó' in this sentence is used to describe the past action where Juan mentally created an idea or image of a peaceful world.
Juan imaginó un mundo lleno de paz.
Juan imagined a world full of peace.
In this sentence, 'imaginó' is reflexively used ('se imaginó') to indicate that the subject saw a mental portrayal of herself performing the action of traveling.
Ella se imaginó viajando por todo el continente.
She imagined herself traveling across the continent.
Here, 'imaginó' is employed to depict the mental process of creation that occurred prior to transferring the design into a physical medium.