the mother of all

Definition of the mother of all

: used to say that something is larger, better, worse, etc., than all other things of the same kind
  • It has been described as the mother of all construction projects.

Word by Word Definitions

all play
  1. : the whole amount, quantity, or extent of

  2. : as much as possible

  3. : every member or individual component of

  1. : wholly, quite

  2. : selected as the best (as at a sport) within an area or organization

  3. : only, exclusively

  1. : the whole number, quantity, or amount : totality

  2. used in such phrases as for all I know, for all I care, and for all the good it does to indicate a lack of knowledge, interest, or effectiveness

  3. : everybody, everything

  1. : the whole of one's possessions, resources, or energy

  1. : other : different : atypical

  2. : isomeric form or variety of (a specified chemical compound)

  3. : being one of a group whose members together constitute a structural unit especially of a language


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serious difficulty or misfortune

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