n. In early Christian use, a colloquial and familiar discourse in exposition of Scripture; in modern use, an expository sermon, or one which interprets and applies a particular passage of Scripture rather than elucidates a particular doctrine or theme.n. Any expository or hortatory discourse.n. [capitalized] In the Ch. of Eng., one of the two series of discourses called “The First” and “The Second Book of Homilies,” the former of which appeared in 1547 and the latter in 1563, appointed to be read in the churches when the sermon was omitted. Synonyms Exhortation, etc. See sermon.