plainecommon nounproper nounverbSyllable DecompositionplaineEtymologyexpandfrom Latin planus (flat, level) see plain.Definitions1. First person singular of the indicative present of plainer.expand2. Third person singular of the indicative present of plainer.expand3. First person singular of the subjunctive present of plainer.expand4. Third person singular of the subjunctive present of plainer.expand5. Second person singular of the imperative of plainer.expandSee alsoplaines (v.) Plaine (pn.) plain (adj.) plains (adj.) plaines (cn.)