Compressible refers to something that can be compressed or squeezed into a smaller space. Imagine squishing a bunch of crumpled paper - it's compressible.
When people talk about things being compressible, they usually mean objects like air, liquids, or even materials like foam or rubber. These kinds of substances are great at getting packed down tight when you squeeze them. This is useful in all sorts of situations - for example, when filling a bike tire with air that's compressible, it can be squeezed into the space available. Compressibility also comes up in engineering and design, where architects might consider whether buildings or bridges will compress under weight or stress.
able to be compressed
