This is the 5681st most frequent Russian word.
пригласили
"Invited."
The word 'пригласили' is used here in its past tense form (plural) to indicate that someone invited 'us' to a social occasion.
Нас пригласили на ужин в новый ресторан.
We were invited to dinner at the new restaurant.
Here, 'пригласили' indicates a formal request made to the teacher to perform an action; it stays in the past tense plural form, indirectly describing the act.
Учитель пригласили прочитать стихотворение вслух.
The teacher was invited to read a poem aloud.
In this context, 'пригласили' is used in the past tense (plural) to describe that 'I' received an invitation to attend an event.