Loft/lɔːft/ Definition 1 of 5Pro Tip 1/2Storage Space Used to describe areas for keeping infrequently used items out of the way. We turned the empty loft into storage for our camping gear. Pro Tip 2/2Just Below Roof Emphasizes that 'loft' is directly under the roof, which may have sloping sides. The artist's loft had slanted ceilings, right under the rooftop.