глубину

In a sentence

• Мы измеряем глубину колодца.

  We are measuring the depth of the well.

  In this sentence, 'глубину' refers to the measurable vertical distance from the top to the bottom of the well. It is presented in the accusative case as the object of the verb 'измераем' (are measuring).

• Художник передал глубину чувств в своей картине.

  The artist conveyed the depth of emotions in his painting.

  Here, 'глубину' expresses a metaphorical use, denoting the intensity or profound magnitude of emotions captured by the artist, again in the accusative case representing the object of the verb 'передал' (conveyed).

• Погрузившись в глубину размышлений, он не заметил окружающего.

  Immersed in the depth of reflection, he did not notice his surroundings.

  In this sentence, 'глубину' is used metaphorically to describe the profound intensity of thought, showing depth as a conceptual rather than physical measurement. It is part of the phrase 'в глубину', a prepositional structure.