To keep distinct or apart by an intervening space or barrier. Of the intervening medium: To occupy the space or interval between. Also figurative.

transitive. To keep separate or apart; to keep (a thing) separate from another; to form a boundary or interval between.

To cut off (one thing) from (another), or (elliptically) from sight, access, etc. †Also with of.

To divide or separate (two things) by passing between them. rare.

To divide or separate by the interposition of something.

transitive. With off. To separate by or as by a partition; to make into compartments by a division.

transitive. To divide, separate, or enclose (an area or space) with or as if with a screen or partition. Chiefly with off.

To part off by a fence or fences. In quot. 1881 figurative.