mope meet meat moat
guru
I think they want dice but that's not really right because one of them is more properly a die.
milkmochamulletmoatmummy
mug
mistime
magic or mystical
mirage
marvellous
· missile · mortar
meter
marathon
Words beginning wth M and ending with ING:makingmanagingmarchingmarkingmeaningmeltingmemorizingmentioningmentoringmigratingmissingmixingmovingmunching