Scholars fiercely argue over several hypotheses about its origin, but have no definite theory.

From their contorted faces and waving arms, they were arguing fiercely.

I heard Bran arguing fiercely with the others, He cannot fight!

The provision has been the subject of lobbying for months, with each side arguing fiercely over almost every word.

In places, pools of men and women argued fiercely against the Boudica's return.

The members of the band sometimes argued fiercely among themselves, but still they had pretty thoroughly bonded, which was to be expected in the circumstances.

Researchers are arguing fiercely about the causes of the decline.

Today we argue fiercely about the limits of race and ethnicity too.

They then spent the rest of the Session arguing fiercely over who was going to pay for it.

The British will run round in circles and argue fiercely among themselves on television programmes.