a signal indicating danger; spec. on Railways, a signal (usually the extended arm of a signal-post painted red, or a red light) indicating an…
| 单词 | θ192746 |
| 释义 | society > communication > indication > [noun] > an indication or sign > of change or danger (3) danger-signal1848 a signal indicating danger; spec. on Railways, a signal (usually the extended arm of a signal-post painted red, or a red light) indicating an… alarm1948 A visible signal, esp. a flashing light, used to warn of danger, attract attention, etc. Subcategories:— of something about to happen (1) |
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