Definition of plugboard 

1 : an electrical switchboard in which connections are made by means of plugs

2 : the part of a tabulating machine in which adjustments are made that determine the place at which a card is punched or stamped

3 : a panel in a computer or other electronic equipment having a multiplicity of female connectors into which male plugs are inserted to establish electrical control circuits

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to deposit or conceal in a hiding place

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