| Engelsk substantiv: alum | 
| 1. | alum (om masse eller substans) a white crystalline double sulfate of aluminum: the ammonium double sulfate of aluminum | 
| 
 | 
 | Ord med samme betydning (synonymer) | ammonia alum, ammonium alum | 
| 
 | 
 | Mindre spesifikke uttrykk | Al, aluminium, aluminum, atomic number 13, double salt | 
| 
 | 
| 2. | alum (om masse eller substans) a white crystalline double sulfate of aluminum: the potassium double sulfate of aluminum | 
| 
 | 
 | Ord med samme betydning (synonymer) | potash alum, potassium alum | 
| 
 | 
 | Mindre spesifikke uttrykk | Al, aluminium, aluminum, atomic number 13, double salt | 
| 
 | 
| 3. | alum (om person) a person who has received a degree from a school (high school or college or university) | 
| 
 | 
 | Ord med samme betydning (synonymer) | alumna, alumnus, grad, graduate | 
| 
 | 
 | Mindre spesifikke uttrykk | bookman, scholar, scholarly person, student | 
| 
 | 
 | Mere spesifikke uttrykk | Ivy Leaguer, old boy | 
| 
 | 
| 4. | alum (om gjenstand) a double sulphate of aluminum and potassium that is used as an astringent (among other things) | 
| 
 | 
 | Mindre spesifikke uttrykk | astringent, astringent drug, styptic | 
| 
 |