thought-form noun2 •A manifestation of the thoughts, ideas or emotions of someone. It is believed to be able to be sensed by people and take physical form within the spirit world.Two people can have the same idea at the same time because they felt the same thought-forms.One can feel the threatening energy of the thought-forms left in the room after a tense fight. •Any of a set of presuppositions or fundamental ideas which define the thinking of people of a given region, time period etc. formsthought-forms