MM

interjection

1. An expression used to show contentment for something
2. An expression used to show thought or reflection
3. An expression used to show being muffled or not able to speak clearly, as well as "mmph".

noun

1. A period into which a year is divided, historically based on the phases of the moon.
2. A period of 30 days, 31 days, or some alternation thereof.
3. (in the plural) A woman's period; menstrual discharge.