| Fettsack | fatso |
| Fetisch | fetish |
| Fettfleck | grease spot |
| Fettsucht | adiposity |
| Fettsäure | fatty acid |
| fettarm | low-fat low in fat |
| Saftsack | jerk |
| Festsaal | assembly hall |
| Fußsack | apron |
| Geldsack | affluent |
| Kehlsack | crop |
| Fresssack | glutton |
| Futtersack | feedbag nosebag |
| Mehlsack | flour sack |
| Seesack | seabag |
| Fotolack | photoresist |
| Jetpack | jet pack |
| Feedback | feedback |
| Fettberg | fatberg |
| Fettkraut | butterwort |