Assiduously

Part of speech: Adverb

Definition: In a diligent, persevering, and constant manner.

Example sentence: She worked assiduously to complete her thesis before the deadline.

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Assiduous

Part of speech: Adjective

Definition: Showing great care, attention, and effort; diligent.

Example sentence: The students received accolades for their assiduous efforts in preparing for the competition.

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Assiduousness

Part of speech: Noun

Definition: The quality or state of being assiduous; diligence.

Example sentence: The success of the project was attributed to the assiduousness of the team members.