adverb

heavily

Translation

to a great degree, with a lot of force, with a lot of weight

It was raining heavily.

He was breathing heavily.

The company invested heavily in new technology.

She sighed heavily.

((verb)) heavily to do (sth.) with great force or degree It was raining heavily.

heavily ((involved/invested)) in ((sth.)) to be involved to a great extent They are heavily involved in the project.

Synonyms: intensely, severely, greatly; Antonyms: lightly, gently

From the adjective 'heavy' + the adverbial suffix '-ly'. 'Heavy' comes from Old English 'hefig', meaning 'having weight'.

Think of something with great weight or force. If it rains 'heavily', the rain itself is 'heavy'.