sieci

In a sentence

• Ryby złapały się w sieci rybackie.

  The fish got caught in the fishing nets.

  Here, 'sieci' is the plural form of 'network' or 'net', referring to physical fishing equipment.

• Obie sieci kawiarni mają specjalne oferty na wiosnę.

  Both café chains have special offers for spring.

  In this context, 'sieci' refers to business chains, such as chains of stores or cafes.

• Nasza sieć informatyczna wymaga aktualizacji.

  Our computer network requires an update.

  Here, 'sieć' (singular, but implying 'sieci' in general) refers to a connected system of computers, i.e., a computer network.