sell something ↔ off phrasal verb ( see also ↑ sell )
1 . to sell something, especially for a cheap price, because you need the money or because you want to get rid of it:
After the war, we had to sell off part of the farm.
We sell off leftover cakes before we close.
2 . to sell all or part of an industry or company:
The Leicestershire company has sold off many of its smaller branches to cut debts.