What is the meaning of pipe up?

verb

WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). pipe up. Retrieved September 20, 2026, from http://smartdefine.org/pipe_up/definitions/1302293
ChicagoWordNet. 2010. "pipe up" http://smartdefine.org/pipe_up/definitions/1302293 (accessed September 20, 2026).
HarvardWordNet 2010, pipe up, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/pipe_up/definitions/1302293>.
MLAWordNet. "pipe up" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/pipe_up/definitions/1302293>