say it: PAH-plur
poplar is a noun meaning "soft light-colored non-durable wood of the poplar". It carries 2 recorded senses.
soft light-colored non-durable wood of the poplar
any of numerous trees of north temperate regions having light soft wood and flowers borne in catkins
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for poplar come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.