There may be no more than 3 copies of a single card.

If played as a single card, it has a value of 14.

In his entire career he did not receive a single red card.

If it were left to me I doubt that a single card would be sent.

The straight pairs can beat any single card, not just 2s.

With us dead, you won't have a single card left to play.

These are small enough to fit on a single card.

A single card can be played in order to put a spacecraft into play (see below).

Over the top of the two he would lay a single card, making a roof.

The other players each follow with a single card, in the direction of play.