the mother of all
phrase
—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.
Cite this Entry
“The mother of all.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/the%20mother%20of%20all. Accessed 13 Mar. 2026.
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