Proper noun
(UK politics) The address of the residence in London of the Chancellor of the Exchequer of the United Kingdom.
(UK politics, by extension, idiomatic) The title or office of the Chancellor of the Exchequer.
(UK politics, by extension, idiomatic) HM Treasury of the United Kingdom.
Source: en.wiktionary.orgChancellor Rishi Sunak also lit several candles outside 11 Downing Street on Friday ahead of the celebrations. Source: Internet
Lamont, who lives in the Chancellor's official residence, No. 11 Downing Street, has begun proceedings to have Dale evicted on the grounds that she broke a rental agreement by using the home for business. Source: Internet
Another view can be found outside No 11 Downing Street, among business leaders, trade unions and thinktanks. Source: Internet
Bed-ridden in No 11 Downing Street, she tweeted that she had not been tested but was experiencing symptoms and was “on the mend”. Source: Internet
The prime minister chairs the morning update meeting on the coronavirus remotely from Number 11 Downing Street, since self-isolating after testing positive for the virus. Source: Internet
The man on next door, Chancellor Philp Hammond at No 11 Downing Street, has expressed his displeasure over the interference of ‘May advsiors’ in the treasury affairs. Source: Internet