the signposts marking a road, place, etc. There is a lack of signposting on these roads. 这些道路上没有路标。
the process of showing clearly the way that an argument, a speech, etc. will develop 介绍（论证、讲话等的）要点 The presentation needed clearer organization and signposting. 演示文稿需要更清晰的组织和路标。