| ENTRESOL | Floor between the two main storeys of a building (8) |
| ATRIUM | A central hall that extends through several storeys of a building (6) |
| MEZZANINE | Floor between first and second (9) |
| BASEMENT | A cellar-like floor or storey of a building; an ancient foundation of rock beneath sedimentary rock; or, an underlying support (8) |
| BRONCHUS | Either of the two main branches of the trachea (8) |
| LABRADOR | There's a broad difference between the two sides in Canada (8) |
| MEDIALLY | In football, the central area between the two opposing defences (8) |
| ESTRAGON | One of the two main characters in Samuel Beckett's Waiting for Godot (8) |
| MAHAYANA | One of the two main branches of Buddhism |
| YOUNGMEN | Between the two of us, locate no good new striplings (5,3) |
| FLOORPLAN | A diagram showing the layout of rooms on one storey of a building (5,4) |
| VLADIMIR | With Estragon, one of the two main characters in Samuel Beckett's Waiting for Godot |
| SECOND | Unit of time defined as "the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom" (6) |
| JULIET | ____ balcony, a very shallow one with a safety railing on an upper storey of a building (6) |
| CELLAR | Basement / underground storey of a building |
| MAISONETTES | Dwellings that are on two storeys of a larger building (11) |
| FLOOR | Storey of a building (5) |
| LOFT | Pigeon house; upper storey of a stable used for hay; thickness of a sleeping bag; or, a warehouse/factory converted into living space(s) (4) |
| SOLAR | A room in the upper storey of a medieval house (5) |
| SUNNI | A member of the larger of the two main sects of Islam (5) |
