Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun salt_mine

2 senses of salt mine

Sense 1
salt mine -- (a mine where salt is dug)
       => mine -- (excavation in the earth from which ores and minerals are extracted)

Sense 2
treadmill, salt mine -- (a job involving drudgery and confinement)
       => occupation, business, job, line of work, line -- (the principal activity in your life that you do to earn money; "he's not in my line of business")