(In the UK) a large red cylindrical public mailbox.
More example sentences
- Councils across Greater Manchester have swapped the ballot box for the pillar box in a bid to stamp out low turnouts.
- I recently posted a letter in the pillar box outside County Hall in Penrhyn Road, Kingston, at about 9.30 am.
- They are particularly keen to speak to a person seen on the film posting a letter in a pillar box.
Definition of pillar box in:
- The British & World English dictionary