rock-solid

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Term: rock-solid

Sense 1 (Adjective): firm, dependable, and reliable.

Example Sentence: The rock-solid friendship between Sarah and Emma lasted through all the ups and downs.

Sense 2 (Adjective): extremely stable and unyielding.

Example Sentence: The construction of the building has to be rock-solid to withstand earthquakes.

Sense 3 (Adjective): certain and unwavering, not subject to change or doubt.

Example Sentence: The company's CEO has a rock-solid belief in the potential of their new product.

Sense 4 (Adverb): in a completely reliable or unmovable manner.

Example Sentence: He stood rock-solid in the face of criticism, refusing to back down from his position.

Sense 5 (Noun): a metaphor for something strong and unshakable.

Example Sentence: The team's defense was a rock-solid wall, making it nearly impossible for the opposing team to score.