This is the 923rd most frequent Bulgarian word.
изследвания
Research or studies.
Here, "изследвания" is used to refer to 'scientific research' as a noun in a plural form, indicating activities conducted to gain new knowledge.
Научните изследвания водят до нови открития.
Scientific research leads to new discoveries.
In this sentence, "изследвания" refers to 'research' as plural noun focused on studying a specific topic deeply.
Той прекара часове в изследвания върху ефективността на уреда.
He spent hours on research into the device's effectiveness.
Here, "изследвания" denotes 'tests' or studies related to medical assessments, reflecting its context-dependent meaning.