| 单词 | busy signal |
| 释义 | busy signalnounTelephony. a regular succession of buzzing tones transmitted to a caller to indicate that the circuit serving the number is blocked or in use, rapid repetition indicating that the network is blocked and normal repetition that the telephone being called is in use. Origin of busy signalFirst recorded in 1890–95 Words nearby busy signalbusy, busy as a beaver, busybody, busy Lizzie, busyness, busy signal, busywork, but, butabarbital sodium, butadiene, butamben Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for busy signalbusy signal nounUS and Canadian a repeated single note heard on a telephone when the number called is already in useAlso called (especially in Britain): engaged tone Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 |
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