solid foundation
📖 Definitions
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A strong, stable, and well-constructed physical base upon which a structure, such as a building or monument, is built.; A strong, reliable, or well-established basis, principle, or set of facts that supports an idea, relationship, organization, or concept.
💬 Examples
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The engineers ensured the skyscraper was built on a solid foundation to prevent tilting.
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Learning basic grammar provides a solid foundation for mastering a new language.