lumbar / lumber [ˈlʌmbɜr]
lumbar – adj. & n. – adj. – pertaining to the region of the spine; n. – an anatomical structure situated next to the abdominal/pelvic spine or the loin
lumber – n. & v. – n. – 1. timber sawn into planks to be marketed for sundry purposes; 2. extra fat, especially in horses; 3. disused or cumbersome odds and ends; 4. a rumbling noise; v. intr. & tr. – 1. move in a clumsy or awkward way; 2. make a rumbling noise; 3. encumber, burden uselessly; 4. heap randomly; 5. imprison, arrest