Marks and Spen ‧ cer /ˌmɑːks ənd ˈspensəʳ $ ˌmɑːrks-/ BrE AmE trademark
a large British store that sells mainly clothes and food. The company is often informally called M & S or Marks and Sparks. Marks and Spencer is known for selling good quality clothes at reasonable prices, especially underwear. Their food products include things that are easy to prepare or ready to eat. ↑ department store s in the UK.