翻訳　日本語　英語: 理論的根拠

1 Base, basic principle, basics, basis, bedrock, cornerstone, evidence, fabric, foot, foundation, framework, fundament, fundamental principle, fundamentals, grounds, groundwork, pedestal, principle, rationale, stand, substructure, understructure.

2 beginning, commencement, first, get-go, head, kickoff, offset, origin, outset, precept, principle, rationale, root, rootage, rule, showtime, source, start, starting time.

3 principle, rationale, reason.

4 principle, rationale, regulation, rule.

5 principle, rationale, rule, theory.