Dais and Reading desk

Dais noun - A level usually raised surface.

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

Reading desk noun - Desk or stand with a slanted top used to hold a text at the proper height for a lecturer.

Dais and reading desk are semantically related. Sometimes you can use "Dais" instead a noun phrase "Reading desk".