Strong's #3906: lachats (pronounced lakh'-ats)
 from 3905; distress:--affliction, oppression.
Brown-Driver-Briggs Hebrew Lexicon:
 
  lachats 
 
 1) oppression, distress, pressure
 
  Part of Speech: noun masculine
Relation: from H3905
Usage:
This word is used 12 times:
Exodus 3:9: "me: and I have also seen  the oppression wherewith the Egyptians oppress"
Deuteronomy 26:7: "our affliction, and our labor,  and our oppression:"
1 Kings 22:27: "fellow in the prison, and feed him with bread  of affliction and with water of affliction, until"
1 Kings 22:27: "and feed him with bread and with water  of affliction, until I come in peace."
2 Kings 13:4: "unto him: for he saw  the oppression of Israel, because the king"
2 Chronicles 18:26: "fellow in the prison, and feed him with bread  of affliction of affliction, until"
2 Chronicles 18:26: "and feed him with bread of affliction  of affliction, until I return in peace."
Job 36:15: "in his affliction, and openeth their ears  in oppression."
Psalms 42:9: "me? why go I mourning  because of the oppression of the enemy?"
Psalms 43:2: "why go I mourning  because of the oppression"
Psalms 44:24: "thou thy face, and forgettest our affliction  and our oppression?"
Isaiah 30:20: "you the bread of adversity, and the water  of affliction, yet shall not thy teachers be removed into a corner any more,"