to have a very unpleasant experience, especially one that lasts for a long period of time.

The poor woman's been going through hell over the last few months, not knowing whether her son was alive or dead.

• put on the spot
• put out feelers
• put out of action
• put out of mind
• put out of misery
• put out of their misery
• put out of your mind
• put out to pasture
• put over knee
• put over the top
• put over your knee
• put own house in order
• put paid to
• put paid to something
• put pen to paper
• put pressure on
• put pressure on someone
• put pressure on something
• put right
• put shirt on
• put shirt on something
• put shoulder to the wheel
• put someone at odds with
• put someone at odds with someone
• put someone back on track