The area surrounding someone or something, together with the objects and circumstances in the vicinity; the environment or ambiance.

plural of surrounding

An outlying area; area in proximity to something / An environment

present participle of surround

which surrounds something

plural of surrounder

One who, or that which, surrounds.

simple past tense and past participle of surround

(Britain) Anything, such as a fence or border, that surrounds something.

(transitive) To encircle something or simultaneously extend in all directions. / (transitive) To enclose or confine something on all sides so as to prevent escape.