Noun, pl. junctures
1. A place where things join, a junction (wiktionary.org); the shape or manner in which things come together and a connection is made (wordnetweb.princeton.edu).
2. A particular point in events or time. (wiktionary.org)
3. The set of features in speech that enable a hearer to detect a word or phrase boundary, e.g., distinguishing I scream from ice cream. (wiktionary.org)