truss.

A framework of connected members, often forming triangles, that supports a roof or bridge.

Use it for

Words that belong together

• roof truss
• timber truss
• steel trusses

On the page

The barn's roof trusses remained visible above the hay.

A broken truss forced them to close the assembly hall.

From the gallery, she could see cables threaded through the steel trusses.

Usage notes

Primary category: architecture. The whole framework, not a single beam; architectural noun sense rather than medical support. Count noun: trusses.