- mustTo do as a requirement; indicates that the sentence subject is required as an imperative or directive to execute the sentence predicate, with failure to do so resulting in a failure or negative consequence.
- mustardA plant of certain species of the genus Brassica, or of related genera (especially Sinapis alba, in the family Brassicaceae, with yellow flowers, and linear seed pods).
- moistCharacterized by the presence of moisture; not dry; slightly wet; damp.
- mustyAffected by dampness or mould; damp, mildewed, mouldy.