Syllable division and stress derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
arduously is an adverb meaning "in an arduous manner". It carries one recorded sense.
in an arduous manner
“they worked arduously”
Definitions, synonyms and semantic relations for arduously come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.
147,478 entries in AltF Lexicon, 83,117 of them with their syllables marked.
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