Synonyms for basis
noun
An intellectual foundation
support, foundation, justification, grounds, reason, explanation, raison d'être (French), background, source, authority, principle, groundwork, underpinning, base, axiom, assumption, point d'appui (French), premise, postulate, antecedent, backing, proof, evidence, data, security, warrant, crux, nexus, nucleus, heart.
A physical foundation
base, foundation, footing, cornerstone; see foundation 2. See syn. study at base.
See basis in Webster's New World Roget's A-Z Thesaurus II
noun
The lowest or supporting part or structure:
base1, bed, bottom, foot, footing, 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, footing, foundation, fundament, ground (often used in plural), groundwork, underpinning (often used in plural). See overA justifying fact or consideration:
foundation, justification, reason, warrant. See trueAn established position from which to operate or deal with others:
footing, status, term (often used in plural). See connectA fundamental principle or underlying concept:
base1, cornerstone, foundation, fundament, fundamental, root1, rudiment (often used in plural). See over
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