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PLAUS'IBLE, adjective s as z. [Latin plausibilis, from plaudo, to clap hands in token of approbation; laus, laudo; Eng. loud.]

1. That may be applauded; that may gain favor or approbation; hence, superficially pleasing; apparently right; specious; popular; as a plausible argument; a plausible pretext; a plausible doctrine.

2. Using specious arguments or discourse; as a plausible man.