2
general::
noun ADJ. first, middle, last the last third of the novel | bottom, lower | top, upper Most of the pupils' marks were in the upper third of the range. VERB + THIRD divide sth into He divided the money into thirds. PREP. ~ of Over a third of sales were made over the Internet. PHRASES about/almost/at least/over a third, between a third and a half, a third to (a) half The discount is a third to a half of the full price.
Oxford Collocations Dictionary