noun
1.
Synonyms: base 1, bed, footing, foundation, ground, groundwork, substratum, substructure, underpinning, understructure
2.
Synonyms: basis 1, base, footing, foundation, ground, groundwork, infrastructure, root, substratum, underpinning
noun
1.
Synonyms: base 1, bed, footing, foundation, ground, groundwork, substratum, substructure, underpinning, understructure
2.
Synonyms: basis 1, base, footing, foundation, ground, groundwork, infrastructure, root, substratum, underpinning
Merriam Webster. Collegiate thesaurus English vocabulary. Английский энциклопедический словарь тезаурус. 2003