Dismantle/dɪsˈmæntl/ Definition 1 of 3Pro Tip 1/3Physical Objects Used when physically taking something into separate pieces. She had to dismantle the crib before moving it to another room. Pro Tip 2/3Methodical Process Often done methodically, with the intent to reassemble or repair. The mechanic dismantled the engine to replace the faulty parts. Pro Tip 3/3Not Destruction Different from destroying; parts are preserved for future use. After Halloween, we'll dismantle the decorations and save them for next year.