The coach class is expressed as a combination of letters.

Just as they would have if some of those letter combinations hadn't jumped out at my eye.

A player can pick which combination of letters he wishes to use.

Lengthy combinations of letters and numbers seem to be particularly difficult to remember.

Several letter combinations have special conventional sound values different from those of their single components.

The letter combinations turned out to be the codes of international airports.

Although the name had a combination of letters and numbers, it was still pronounced processing.

A large stone block showing a combination of letters and numbers is also revealed.

The board looks a bit barren, in part because the players are so good at making dense combinations of letters.

I learned the way letters and letter combinations go together and sound.