A (usually prearranged) gesture, action, or sound acting as the prompt for a particular action, esp. a military manoeuvre. Also figurative: an…
| 单词 | θ191860 |
| 释义 | society > communication > indication > signalling > [noun] > signal > as agreed for concerted action (2) signal?1576 A (usually prearranged) gesture, action, or sound acting as the prompt for a particular action, esp. a military manoeuvre. Also figurative: an… signal word1645 a word used as a signal; spec. a word printed on the packaging of a hazardous material to indicate the degree of toxicity. |
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