gh the process of either radiation or concatenation, and in many cases, of both.РRadiation is a semantic process which shows that the primary meaning and each of the derived meanings are directly connected.РConcatenation is a semantic process which shows that the primary meaning gives birth to a second meaning and this second meaning in turn gives birth to a third meaning and so on. Each of the derived meaning is related only to the previous meaning and there is no direct connection between the primary meaning to the latest developed meaning.РThe word board developed mainly through the process of concatenation but radiation also performed. It first denoted “a table”Рand later acquired two very divergent senses. Each of them has given rise to another sense from which the Original notion has