Put the children into two teams (A and B).

The teacher has a dictionary and picks a letter for day. They then pick a word starting with that letter from the dictionary. The teacher reads the meaning and children in opposite teams compete to guess the word. eg. 'this word starts with b and means to construct (reads dictionary meaning). The children then have to guess what it is - in this case "build".

Move around circle with children from each team challenging each other. Points can be recorded on the board and the team with most points wins.