: the rear part of the human body especially from the neck to the end of the spine. They were left with nothing but the clothes on their backs. Put your back into it! She had surgery on her back. The title is …

BACK definition: 1. in, into, or towards a previous place or condition, or an earlier time: 2. in return: 3. in…. Learn more.

To be in favor of; endorse or advocate: backed the reform proposal.

Back (disambiguation) Look up Back, back, bäck, or back- in Wiktionary, the free dictionary. The back is the area of the human body from the top of the buttocks to the back of the neck and shoulders. Back …

If you write or call back, you write to or phone someone after they have written to or phoned you. If you look back at someone, you look at them after they have started looking at you.

Back pain is one of the most common reasons people seek medical help. Home treatment and proper body mechanics often can treat back pain within a few weeks.

BACK definition: the rear part of the human body, extending from the neck to the lower end of the spine. See examples of back used in a sentence.