say it: KOH-pyuh-slee
copiously is an adverb meaning "in an abundant manner". It carries one recorded sense.
in an abundant manner
“they were abundantly supplied with food”
“he thanked her profusely”
Definitions, synonyms and semantic relations for copiously 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.