dieron
Dieron is the third-person plural preterite (simple past) form of the Spanish verb dar, meaning they gave. It is used in narrative or factual contexts to describe a completed act of giving in the past. In many dialects, especially in Latin American Spanish, it is also the form used with ustedes as the subject, since ustedes behave as ellos/ellas in the past tense.
The verb dar is irregular in the preterite. Its full preterite conjugation is di, diste, dio, dimos,
Common uses of dieron include reporting that someone provided something (dieron regalos, they gave gifts), describing
See also: conjugation patterns of dar, comparison with other preterite forms, and related verbs such as entregar