Cosmos often simply means "universe". But the word is generally used to suggest an orderly or harmonious universe, as it was originally used by Pythagoras in the 6th century B.C.

Usage of the word cosmos implies viewing the universe as a complex and orderly system or entity. [2] The cosmos is studied in cosmology – a broad discipline covering scientific, religious or philosophical …

COSMOS definition: the world or universe regarded as an orderly, harmonious system. See examples of cosmos used in a sentence.

/ ˈkɑz·məs, -moʊs / Add to word list the universe considered as a system with an order and pattern (Definition of cosmos from the Cambridge Academic Content Dictionary © Cambridge University Press)

any of a genus (Cosmos) of tropical American plants of the composite family, with featherlike leaves and heads of white, pink, or purple flowers

Definition of cosmos noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

1. The universe regarded as an orderly, harmonious whole. 2. An ordered, harmonious whole. 3. Harmony and order as distinct from chaos.

Factsheet What does the noun cosmos mean? There are three meanings listed in OED's entry for the noun cosmos. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

Cosmos definition: The universe regarded as an orderly, harmonious whole.

Jan 20, 2026 · cosmos (countable and uncountable, plural cosmos) Any of various mostly Mexican herbs of the genus Cosmos having radiate heads of variously coloured flowers and pinnate leaves.