This is a list of stagecraft terms and abbreviations with short definitions. Items having a separate article of their own are marked as a link in the item's title listed in this article.

ALD
Assistant Lighting Designer
ASM
Assistant Stage Manager
Batten
A horizontal pipe, often suspended from the fly system
Boom
A verical pipe for mounting lighting instruments, scenery, or other items.
Box Boom
A vertical pipe on which lighting instruments are mounted in the house. Name comes from their position near the "box seats"
Gobo
A steel or glass pattern that is placed in the beam of a light to project the image on the pattern. See pattern.
Grid
the structure from which items are suspended in a theater.
Squint
Slang for an electrician, often disparaging.