simple past tense and past participle of surround

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

(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.

which surrounds something

present participle of surround

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

plural of surrounding

Things bordering, adjacent to, or near something else; surroundings.

Third-person singular simple present indicative form of surround