Near Mint
Near mint condition cards are generally in good shape, cards may have very minor edgewear, chipping or light scratches, tiny dents are only allowed if the card is otherwise in very good shape.
Played
Played cards may contain more noticeable damage such as edgewear, chipping, scratches or dents, but are still intact and won't contain major creases.
Damaged
Damaged cards have very noticeable wear and tear, they may be missing a piece of the card or have major creases, or otherwise deep scratches, whitening, chipping, denting, etc.