Debit card
A debit card is one that gives you access to your money and to spend it via the card rather than having to have the cash physically present removed from your account.
The big difference is that funds are taken out immediately with a debit card payment, as opposed to a credit card where typically you will be billed some time after the purchase is made and then have more time to pay off the balance, so in that sense it is less convenient.
However, they tend to be free or charges unlike some credit card charges, and additionally the temptation to go over a credit limit is not there due to the linkage to your account.
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