| 100% | CAVE | 4 | Natural rocky shelters once used to escape harsh weather, now replaced by cozy, heated houses |
| 34% | SKIN | 4 | Animal ___, thick animal hides once used to keep people warm, now replaced by cozy sweaters and jackets |
| 30% | BONFIRE | 7 | Large outdoor flame once used to keep people warm in the cold, now replaced by modern heating systems |
| 24% | FURNACE | 7 | Used to heat houses, melt ores or produce steam |
| 23% | INSULATE | 8 | Use thick material to stop heat escaping |
| 22% | EAR | 3 | "I used to play piano by ___. Now I use my hands!" |
| 21% | HIBERNATE | 9 | Ancient winter survival method of sleeping through the season, now replaced by sunny getaways to Cancun or Costa Rica |
| 21% | MAPROOM | 7 | White House section once used to track the locations of military forces |
| 20% | SCUTA | 5 | Protective items that legionnaires once used that replaced the clipei they carried up to about 4 BC |
| 20% | STEW | 4 | Thick, slow-cooked meal once eaten to survive cold days, now replaced by warm mugs of hot chocolate |
| 20% | TWAS | 4 | Used to be, once |
| 19% | CELLULOID | 9 | Flammable film once used to shoot movies |
| 19% | SPEARS | 6 | Sharp tools once used to catch fish |
| 19% | SHELLAC | 7 | Resin once used to make gramophone records |
| 19% | TIN | 3 | Soft metal once used to make foil |
| 19% | SASSAFRAS | 9 | Flavorful bark once used to make root beer |
| 19% | DUSTBIN | 7 | Metal container once used to throw away refuse |
| 19% | POWDER | 6 | Historic Prague tower once used to store munitions |
| 19% | MALARIA | 7 | "Congestive fever" was once used to describe this |
| 19% | DDT | 3 | Banned compound once used to control malaria: abbr. |
| 19% | DOGSLEDS | 8 | Vehicles once used to deliver mail in Alaska |
| 19% | AKITA | 5 | Japanese dog breed once used to hunt bears |
| 19% | INKLE | 5 | Type of linen tape once used to make laces |
| 18% | LEECH | 5 | Worm once used by bloodletters |
| 18% | BARRACKS | 8 | Buildings used to house soldiers |
| 18% | ASTROLABE | 9 | Measuring instrument once used by navigators |
| 18% | ROSETS | 6 | Reddish dyes once used by painters |
| 18% | TANG | 4 | Drink mix once used by NASA |
| 18% | BLEEP | 5 | Sound once used by TV censors |
| 18% | TANG | 4 | Powdered drink once used by NASA |