Back and Sacrum

Back noun - A behind part or surface.

Sacrum and back are semantically related In some cases you can use "Sacrum" instead a noun "Back".

Nearby Words: backward, backing, backed, backside, backwards

Sacrum noun - Wedge-shaped bone consisting of five fused vertebrae forming the posterior part of the pelvis; its base connects with the lowest lumbar vertebra and its tip with the coccyx.

Back and sacrum are semantically related in bottom topic. Sometimes you can use "Back" instead a noun "Sacrum".

Nearby Word: sacral