alum

/ˈæləm/ · 2 syllables

Meaning

noun

1. a white crystalline double sulfate of aluminum: the ammonium double sulfate of aluminum
2. a white crystalline double sulfate of aluminum: the potassium double sulfate of aluminum
3. a person who has received a degree from a school (high school or college or university)
4. a double sulphate of aluminum and potassium that is used as an astringent (among other things)

Synonyms for alum

• ammonia alum
• ammonium alum
• potassium alum
• potash alum
• alumnus
• alumna
• graduate
• grad

Words that rhyme with alum

• allum
• callum
• hallam
• hallum
• kallam
• maccallum
• mccallum