complex
n. countablen. a group of buildings or rooms that are joined together for a specific purpose. It can also mean a group of related things that are complicated and hard to separate.
n. a whole structure made up of interconnected or related parts. Often refers to a group of buildings or a set of repressed ideas that influence a person's behaviour.
The new sports complex has three swimming pools.
The company is moving its headquarters to a massive office complex outside the city center.
Architects designed the residential complex to integrate seamlessly with the surrounding parkland, ensuring that the structural density did not overwhelm the natural landscape.
From French complexe, from Latin complexus, past participle of complector (“to entwine, encircle, compass, infold”), from com- (“together”) and plectō (“to weave, braid”). May be analyzed as com- + -plex. See complect. Doublet of complexus.
Often used with a modifying noun to specify the purpose, such as 'apartment complex' or 'industrial complex'.