ブルーチップMeanings1noun which may take the genitive case particle 'no', nounblue-chipUsed attributively for stocks, companies, or investments considered reliable and high-quality. Often appears as ブルーチップ株 (blue-chip stock).彼かれはブルーチップ株かぶだけに投とう資ししている。He invests only in blue-chip stocks.