Card什么意思？

"Card" is an English word with multiple meanings, primarily referring to cards. These most common uses include birthday cards, Christmas cards, holiday cards, business cards, identity cards, credit cards, debit cards, VIP cards, discount cards, expense cards, record cards, scorecards, playing cards, bank cards, membership cards, IC smart cards, entry cards, phone cards, and more.

However, in other domains as well, "card" has specific applications. For example, in high school or college math, it may denote the count of subsets within a given set.

When using "card," be sure to understand its different interpretations based on the context in which you're referring. A more precise understanding can be obtained by consulting a comprehensive English dictionary or utilizing specific phrases or idioms to describe the intended meaning.

In summary, "Card" has multiple meanings, including cards used for birthdays, Christmas, business, personal identification, payment options, collections, sets, mathematical entities, and various other contexts. Understanding these meanings is crucial when using "card" in different contexts to ensure accurate communication and avoid confusion.