1.
foundation; basis; base; infrastructure
The underlying support or foundation on which something is built or operates. Can be physical, economic, or abstract.
Related Words
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基礎 (foundation/basis)
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土台 (foundation)
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インフラ (infrastructure)
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根幹 (core)
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ベース (bass (instrument))
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屋台骨 (framework)
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岩盤 (bedrock)