See footing in Webster's New World Roget's A-Z Thesaurus II
noun
The lowest or supporting part or structure:
base1, basis, bed, bottom, foot, foundation, fundament, ground, groundwork, seat, substratum, underpinning (often used in plural). See overThat on which something immaterial, such as an argument or a charge, rests:
base1, basis, foundation, fundament, ground (often used in plural), groundwork, underpinning (often used in plural). See overPositioning of one individual vis-Ã -vis others:
place, position, rank1, situation, standing, station, status. See placeAn established position from which to operate or deal with others:
basis, status, term (often used in plural). See connect
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