Casino games, gambling, and betting all mean different things under the UK...

https://bravo-wiki.win/index.php/What%E2%80%99s_the_Difference_Between_a_Bet_and_Betting%3F

Casino games, gambling, and betting all mean different things under the UK Gambling Act 2005. Casinos offer games like roulette where you play against the house. Gambling covers a wider range of activities involving risking money, including betting