gam‧bling /ˈɡæmblɪŋ/
noun [uncountable] when people risk money or possessions on the result of something which is not certain, such as a card game or a horse race ⇒
betting:
The lottery is probably the most popular form of gambling. gambling debts The police raided a number of illegal gambling dens (=places for illegal gambling). [TahlilGaran] Dictionary of Contemporary English ▲