Simple Definition of cosmos

from our Learner's Dictionary

cosmos

noun

plural cosmos
1
: the universe especially when it is understood as an ordered system
the origins of the cosmos
2
: a tall plant that has usually white, pink, or red flowers

Cite this Entry

“Cosmos.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/cosmos. Accessed 14 Apr. 2026.

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