A roof having a valley instead of a flat at the top, giving it a vertical section somewhat like the capital letter M.

(military, historical) Initialism of meat and vegetable (rations).

(fandom slang) The ship of characters Fox Mulder and Alex Krycek from the television series The X-Files.

(business) Initialism of organization and methods.

Alternative form of IM

Any non-dairy milk.

plural of m*lk

Alternative letter-case form of m-word

plural of M-word

(immunology) one of several isotypes of antibodies produced by vertebrates