A four-poster bed is a classic, elegant piece of furniture that adds glamor and sophistication to any bedroom. However, if you're looking for other options to describe this type of bed, there are a number of synonyms that you can use. One option is a "canopy bed," which features a frame with a canopy draped over the top. Another synonym is a "poster bed," which refers to any bed with vertical posts at the corners. Additionally, you could describe a four-poster bed as a "pencil post bed" due to the slim, vertical posts that resemble pencils. No matter what term you use, a four-poster bed is a timeless and luxurious addition to any bedroom.