A baldachino, also known as a canopy or a tester, is a decorative structure that is often placed over an altar, tomb or throne. Synonyms for the word baldachino include: 1. Canopy - A protective covering often made of cloth or other material. 2. Pavilion - A large and ornate tent that provides shelter. 3. Tent - A temporary structure made of canvas or other materials. 4. Covering - A cloth or material that protects against outside elements. 5. Dais - A raised platform or stage used for public speaking or ceremonies. 6. Testudo - A type of armored shield used by ancient Romans. 7. Umbrella - A portable shelter that protects from the sun, rain, or snow. 8. Ceiling - The top part of a room or structure.