negro

In a sentence

• Aquest vestit és de color negre.

  This dress is black in color.

  In this sentence, 'negre' is used as an adjective to describe the color of the dress, meaning black.

• Vaig comprar un llibre amb la tapa negra.

  I bought a book with a black cover.

  Here, 'negra' (feminine form of 'negre') describes a characteristic of the book's cover, indicating its color.

• El carbó és negre.

  Coal is black.

  In this example, 'negre' serves as an adjective describing the inherent color of the coal.