0 the activity of taking part in duels (= formal fights between two people, using weapons, usually because one person has insulted the other):
The game of chess requires intense concentration and sustained mental duelling.
Their partnership is full of vitality, kept alive with intellectual duelling.
Every authority, whether monarch or government, tried to outlaw duelling.
The duel has been romantically celebrated as the last refuge of honour but in reality, duelling was often closer to common brawling.
Thackeray's Barry Lyndon is the story of an 18th century Irish lad making his way in the world through duelling, gambling and loving.
Thomas Paine wrote articles against slavery and against duelling.
On their weekly show, the duelling critics would debate, often passionately, the merits of that week's crop of new films.
The film tells a tale of rivalry between duelling air-traffic controllers.
It is not uncommon for duelling relatives to make false accusations.