The term "platinum card" refers to a high-end credit card that typically requires a high credit score and offers premium benefits such as travel rewards, concierge services, and exclusive perks. Some common synonyms for a platinum card include a premium card, elite card, prestigious card, high-end card, and luxury card. These cards are often associated with high net-worth individuals who can afford to pay an annual fee and take advantage of the card's benefits. However, there are also platinum cards available for those with more modest incomes that still offer premium features and rewards.