Home Counties 
The English counties surrounding London, into which London has extended. They comprise chiefly Essex, Kent, Surrey, and Hertfordshire.
- marching orders
- marching season
- marching song
- marching watch
- marchioness
- Marchi-positive
- marchland
- marchlands
- March Madness
- marchman
- March moth
- marchpane
- march-past
- march stone
- march to (the beat of) a different tune (or drummer)
- march-ward
- Marciano, Rocky
- marcid
- Marcionism
- Marcionist
- Marcionite
- Marcionitism
- Marcobrunn
- Marcobrunner
- Marcomanni