1. common divisor an integer that divides two (or more) other integers evenly
  2. common wood sorrel Eurasian plant with heart-shaped trifoliate leaves and white purple-veined flowers
  3. common watercress perennial Eurasian cress growing chiefly in springs or running water having fleshy pungent leaves used in salads or as a potherb or garnish; introduced in North America and elsewhere
  4. commensurate corresponding in size or degree or extent
  5. community of scholars the body of individuals holding advanced academic degrees
  6. common daisy low-growing Eurasian plant with yellow central disc flowers and pinkish-white outer ray flowers
  7. common viper small terrestrial viper common in northern Eurasia
  8. common devil's claw annual of southern United States to Mexico having large whitish or yellowish flowers mottled with purple and a long curving beak
  9. community service a service that is performed for the benefit of the public or its institutions
  10. commissioned officer a military officer holding a commission
  11. command overhead (computer science) the processing time required by a device prior to the execution of a command
  12. common measure the usual (iambic) meter of a ballad
  13. common sense sound practical judgment
  14. common osier willow with long flexible twigs used in basketry
  15. commandeer take arbitrarily or by force
  16. immunodeficiency a disorder that lessens the body's ability to fight disease
  17. chemin de fer a card game played in casinos in which two or more punters gamble against the banker; the player wins who holds 2 or 3 cards that total closest to nine
  18. commentator an expert who observes and remarks on something
  19. amentiferous (of plants) bearing or characterized by aments or catkins
  20. common nuisance a nuisance that unreasonably interferes with a right that is common to the general public