I'll go first with a few: * abstractionism * allelomorphism *
A four letter word that starts with J and ends with M: jism.
A six letter word that start with M and ends with F is myself.
A seven (7) letter word that starts with M and ends with O: memento
That is a problem.
How about rhythm
Inchworm - A small hairless caterpillar
Five letter word ends with M: Album Axiom Bream Cream Dream Gleam Madam Prism Scram Scrim Scrum Serum Strom Strum Swarm
some five (5) letter word that starts with M and ends with E: maize. maple. mauve. matte. maybe. melee. morse. mouse. movie.
4 letter thing that ends with m is SPAM.
Eight-letter words that start with I and end with M include: Isotherm Idealism
A three-letter word for chess pieces is "men."
ram tom (a male turkey)
embalm emblem esteem
militant, murkiest, movement
There could be multiple answers to this. RACISM is one such word starting with R and ending with M.
No US State ends with the letter M.
empiricism enthusiasm epithelium evangelism
One of these two: Enorm Enzym
mendicant, mesmerist, botorboat, mouthpart
The word you're looking for is monopoly.
There are no English words that meet the criteria, but bittock is a word you can make without the M.