Dais and Gantry

Dais noun - A level usually raised surface.

Gantry and dais are semantically related In some cases you can use "Gantry" instead a noun "Dais".

Gantry noun - A framework of steel bars raised on side supports to bridge over or around something; can display railway signals above several tracks or can support a traveling crane etc..

Dais and gantry are semantically related in base topic. You can use "Dais" instead a noun "Gantry".