Are the five elements of "Sen" wood?

Yesterday in a Feng Shui group, I asked what the word "sen" was, and one of them said that the word "sen" was not wood, but an element of "fire"! On my theory, feng shui bears a head; So is the tip of the volcano. The word "sen" is vivid. It seems that the meaning of the word should also cooperate with Feng Shui, which is more perfect. It also raised my stink level,' he said.