This is the 5394th most frequent Spanish word.
millar
A "millar" is a group or unit of one thousand.
Here, 'millar' is used to indicate an approximate quantity equivalent to one thousand, emphasizing the large but imprecise count of stars.
Hay un millar de estrellas en el cielo esta noche.
There are a thousand stars in the sky tonight.
In this sentence, 'millar' signifies the rounded figure or approximate count of the attendees at the concert.
Un millar de personas asistieron al concierto ayer.
A thousand people attended the concert yesterday.
'Millar' is employed here to express a count approximately equal to one thousand, providing a sense of large quantity.