What does "common salt" mean?

Ordinary salt (sodium chloride or any mineral product chiefly composed of it).

What is a synonym for "common salt"?

Common synonyms include: inorganic salt, salt, sodium chloride, table salt.

noun

noun ·Rare ·Advanced level

Noun

1
Ordinary salt (sodium chloride or any mineral product chiefly composed of it). uncountable
"Near-synonyms: table salt, rock salt, road salt, muriate of soda"
2
white crystalline form of especially sodium chloride used to season and preserve food wordnet
3
a white crystalline solid consisting mainly of sodium chloride (NaCl) wordnet

"Near-synonyms: table salt, rock salt, road salt, muriate of soda"