- ludusA gladiatorial training school.
- ludologyThe study of games and other forms of play.
- ludo-Of or relating to games, especially video games.
- ludomaniaAddiction to games or gambling; problem gambling.
- ludophiliaThe love of play.
- LudoSportA modern, lightsaber-inspired combat sport created in Italy, blending martial arts, fencing, and Star Wars fantasy into a fitness-focused activity with codified techniques, forms, and tournaments.