Collapsible chair and Folding chair

Folding chair and collapsible chair are semantically related In some cases you can replace phrase "Folding chair" with "Collapsible chair", this phrases are similar.

Folding chair noun - A chair that can be folded flat for storage.

Collapsible chair and folding chair are semantically related in chair folded for storage topic. You can use "Collapsible chair" instead a noun phrase "Folding chair".