Farm
Mushroom
macaroni
Farm If you mean... ends with an "m", not ends with "am".
Milka's (chocolate)
4 letter thing that ends with m is SPAM.
1 Man Went To Mow Looking for a Place that starts with W is 4 letters long. Second word 4 letters, and ends with m Maybe Room?
mise en place
Niamh M. Healy has written: 'Rheology and performance of batters made from Irish grown wheat varieties' -- subject(s): Batters (Food), Breading, Food, Flour, Edible coatings, Rheology, Analysis
Actually, it starts and ends with "M", but you remove the first "M" and insert an "O" ANYWHERE in the word, not just replace "M" with "O"
Medium Maim Mom Mum M&M
The large "M", known as the golden arches, on the McDonald's fast food sign is yellow. The name underneath is written out in white letters.
Mushroom is one.