blue chip

(noun) a common stock of a nationally known company whose value and dividends are reliable; typically have high price and low yield. Synonyms: blue chip, blue-chip stock. Example: "Blue chips are usually safe investments."

(noun) a blue poker chip with the highest value. Synonyms: blue chip.

(adj) extremely valuable. Synonyms: blue-chip. Example: "Rembrandt is considered a blue-chip artist."