When does one capitalize the word "city"? [closed]

In the UK, when does one capitalize the word "city"? As in My City does not approve of trash receptacles.

There is precisely one time when you capitalize the word 'city' - when it is actually part of a proper name, for example the name of the city itself or some entity related to the city.

So you can write "Manchester City" (either the municipality or the football team), because that is the name. But generally you should use lowercase when referring to "my city", "the city", "a city" etc.

So the following are correct:

• I work for Manchester City
• I play for Manchester City
• The motion was discussed by Manchester City Council
• His formal title is 'City Treasurer'.
• Manchester is a city in England
• The nearest city is called Manchester
• I live in a city called Manchester
• Manchester is not the city I mean
• He is the treasurer for the city.