Definition of 'groundwork'

Noun

1. the fundamental assumptions from which something is begun or developed or calculated or explained; "the whole argument rested on a basis of conjecture"
      Synonyms: basis base foundation fundament cornerstone
2. lowest support of a structure; "it was built on a base of solid rock"; "he stood at the foot of the tower"
      Synonyms: foundation base fundament foot substructure understructure
3. preliminary preparation as a basis or foundation; "we are prepared today because of groundwork that was done ten years ago"

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