postcode

noun

1. (Ireland, UK)A sequence of letters and numbers added to a postal address to aid the sorting and delivery of post or mail.
2. (Ireland, UK, broadly)A sequence of letters and numbers added to a postal address to aid the sorting and delivery of post or mail.

   “The Environment Agency says it is mainly the most deprived postcodes that are the most flood-prone.”

3. (Australia, New-Zealand)A four-digit number added to a postal address to sort and deliver mail.

verb

1. (UK, transitive)To give a postcode to; to mark with a postcode.