app.
English edit
Noun edit
app.
- (law) Abbreviation of appendix (text added to the end of a book or an article).
- Abbreviation of apprentice.
Usage notes edit
This is the customary abbreviation of this term as used in legal citation. See, e.g., The Bluebook: A Uniform System of Citation, Nineteenth Edition (2010), "Subdivisions", Table T16, p. 472-73.