Definition of blue-chip adjective from the Oxford Advanced Learner's Dictionary



BrE BrE//ˌbluː ˈtʃɪp//
; NAmE NAmE//ˌbluː ˈtʃɪp//
[only before noun] (finance)
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a blue-chip investment is thought to be safe and likely to make a profit blue-chip companies Word Originearly 20th cent. (originally US): from the blue chip used in gambling games, which usually has a high value.
See the Oxford Advanced American Dictionary entry: blue-chip