say it: roh-TUHND
rotund is an adjective meaning "spherical in shape". It carries 3 recorded senses.
spherical in shape
(of sounds) full and rich
“orotund tones”
“the rotund and reverberating phrase”
“pear-shaped vowels”
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 rotund 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.