crutch
/kɹʌtʃ/noun
A support, usually fitted under the armpit, that helps an injured person walk by taking weight off a leg.
Example sentences
- “After the operation she needed a crutch to get around the house.”
- “He walked on crutches for six weeks after breaking his ankle.”
Figuratively, a crutch is anything you lean on too much: 'using notes as a crutch'. That use is mildly critical.