say it: GLAHY-dur
glider is a noun meaning "aircraft supported only by the dynamic action of air against its surfaces". It is pronounced /ˈɡlaɪdɚ/ — GLAHY-dur. It carries one recorded sense.
aircraft supported only by the dynamic action of air against its surfaces
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 glider 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.