adverb

heavily

heavily, intensely, greatly

It was raining heavily.

It was raining heavily.

He leaned heavily on the table.

He leant heavily on the table.

She is heavily involved in the project.

She is heavily involved in the project.

modifies a ((verb)) to (verb) heavily It rained heavily all night.

Synonyms: intensely, greatly, strongly; Antonyms: lightly, slightly

From the adjective 'heavy' plus the adverb-forming suffix '-ly'.

Think of the adjective 'heavy'. The '-ly' ending turns it into an adverb describing how an action is done, i.e., in a 'heavy' manner.

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