WordReference Random House Unabridged Dictionary of American English © 2026
cosm-, 
  1. var. of cosmo- before a vowel:cosmism.

-cosm, 
  1. var. of cosmo- as final element of a compound word:microcosm.

WordReference Random House Unabridged Dictionary of American English © 2026
cosmo-, 
  1. a combining form meaning "world,'' "universe,'' used in the formation of compound words:cosmography;
    in contemporary usage, sometimes representing Russian kosmo-, it may mean "outer space,'' "space travel,'' or "cosmic ray'':cosmonaut.
Also,[esp. before a vowel,] cosm-. Cf. astro-. 
  • Greek kosmo-, combining form of kósmos cosmos

'cosm-' also found in these entries (note: many are not synonyms or translations):
cosmo- - cosmism

Forum discussions with the word(s) "cosm-" in the title:


Look up "cosm-" at Merriam-Webster
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