Definitions of mother:

• noun:   a condition that is the inspiration for an activity or situation

  Example: "Necessity is the mother of invention"

• noun:   a woman who has given birth to a child (also used as a term of address to your mother)

  Example: "The mother of three children"

• noun:   a term of address for an elderly woman
• noun:   a stringy slimy substance consisting of yeast cells and bacteria; forms during fermentation and is added to cider or wine to produce vinegar
• verb:   care for like a mother
• verb:   make children