| Czech | váček |
| Chinese (simplified) | 囊 , 液囊 |
| English | sac |
| Italian | sacco |
| Hyponym: | air_sac yolk_sac yolk_sac air_sac bladder amnion pericardial_sac saccule chorion alveolus air_bladder coelenteron acinus bursa pouch vesicle cisterna |
| Hypernym: | cavity |
| Semantic Field: | bodyn |