Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun high_roller
2 senses of high roller
Sense 1
big spender, high roller -- (one who spends lavishly and ostentatiously on entertainment; "the last of the big spenders")
=> spendthrift, spend-all, spender, scattergood -- (someone who spends money prodigally)
Sense 2
high roller -- (a gambler who wagers large sums)
=> gambler -- (a person who wagers money on the outcome of games or sporting events)