Cubbyholes are small, enclosed spaces that can be used for storage or shelter. The crossword solutions for the term cubbyholes are DENS (4 letters), CELLS (5 letters), NOOKS (5 letters), and NICHES (6 letters). DENS are typically found in nature, such as those made by animals, while cells are usually associated with prisons or jails. NOOKS are cozy, sheltered areas, often found in homes, while niches are shallow recesses in walls, often used to display items.