определени

In a sentence

• Тя има определени предпочитания във вкусовете си.

  She has specific preferences in her tastes.

  Here, "определени" is used as an adjective to mean "specific" or "particular," describing the nature of the preferences.

• Беше нужно да уточним определени детайли преди срещата.

  It was necessary to clarify certain details before the meeting.

  In this sentence, "определени" means "certain" or "some," referring to unspecified details needing clarification.

• Определено трябва да обърнем внимание на тези проблеми.

  We definitely need to pay attention to these issues.

  Here, "определено" (a variant of "определени") serves as an adverb, meaning "definitely," to stress the necessity of the action.