Collapse can have different meanings depending on the context. Here are some possible definitions of the term:

• To fall or shrink together abruptly and completely: This can happen due to the force of external pressure, such as when a building collapses after an earthquake.

• To break down suddenly and completely: This can refer to a sudden loss of force, value, or effect, such as when a business collapses due to financial problems.

• To fold down into a more compact shape: This can refer to objects that can be made smaller for convenient storage or transportation, such as a collapsing golf club that can fit into a travel bag.

• A breakdown in vital energy, strength, or stamina: This can refer to a state of extreme prostration and physical depression, such as from circulatory failure or great loss of body fluids.

• A state of extreme weakness or exhaustion: This can refer to a state of extreme prostration and physical depression, such as from circulatory failure or great loss of body fluids.

• To suddenly be unable to continue or work correctly: This can refer to people or businesses that suddenly fail or become unable to function properly, such as when the property market collapses and many people lose their jobs.

• To fall or cave in; crumble suddenly: This can refer to the sudden collapse of a structure or object, such as when the roof of a building collapses and buries a crowd.

• To be made so that sections or parts can be folded up: This can refer to objects that can be made smaller for convenient storage or transportation, such as a collapsible chair.

• To become unconscious and fall to the ground: This can happen when a person faints or experiences a sudden loss of consciousness, and can be a sign of a serious medical condition.

Overall, collapse can refer to a sudden and complete breakdown or failure of something, whether its a physical structure, a business, or a persons health.