shoe tree 
noun
A shaped block inserted into a shoe when it is not being worn to keep the shoe in shape.The best ways to find a shoe tree are luck, accident, or word of mouth....
- I found the second shoe tree a day after that, and the third one three days after that.
- This narrow, 180-foot-long assembly of cast-offs included shoe trees, crockery, wheels, hand tools, hardware, animal horns and masks from various cultures, nestled one after the other.
- shield
- shield bug
- shield fern
- Shield fever
- shield law
- shieldless
- shield-tailed snake
- shieldtail snake
- shield volcano
- shieling
- shift
- shiftable
- shift dress
- shifter
- shift for oneself
- shiftily
- shiftiness
- shifting
- shifting agriculture
- shifting cultivation
- shifting sands
- shift key
- shiftless
- shiftlessly
- shiftlessness