To fabricate something means to make or construct it, especially with skill. A factory might fabricate steel beams for bridges, or a craftsperson might fabricate jewelry from precious metals. The word emphasizes the process of building or assembling something from raw materials or parts.

But fabricate also means to invent a false story or make up facts. When someone fabricates an excuse for being late, they're creating a lie. A student who fabricates details in a book report about a book they didn't actually read is inventing information to cover up that they didn't do the work.

This second meaning carries serious weight. Scientists who fabricate research data betray the trust of everyone who depends on their work. A witness who fabricates testimony in court can cause terrible injustice. The word suggests deliberate deception, not just an honest mistake or misremembering.

A fabrication can mean either something that's been constructed (like “The metal fabrication took three weeks”) or a made-up story (like “That excuse was a complete fabrication”). Context usually makes clear which meaning applies, though both share the idea of something being “made” rather than naturally occurring or true.