large-scale

UK: ˌlɑːdʒˈskeɪl | US: ˌlɑːrdʒˈskeɪl

Definition
  1. adj. involving many people or things; extensive in size or scope

  2. adj. (of a map, model, etc.) representing features in a way that makes them appear larger than in reality

Structure
large <big>scale <measurement system>
Etymology

The word combines "large," from Old French large (broad, generous), derived from Latin largus (abundant), with "scale," from Latin scala (ladder, staircase). By the 17th century, "scale" evolved to denote proportional measurement (e.g., maps). The compound "large-scale" emerged in the 19th century, logically merging "large" (extensive) with "scale" (system of measurement) to describe things of considerable size or scope.

Examples
  1. The government launched a large-scale initiative to combat climate change.

  2. The architect presented a large-scale model of the proposed skyscraper.

  3. Large-scale protests erupted across the country.

  4. This map uses a large-scale format to highlight urban details.

  5. The study relied on large-scale data analysis to draw conclusions.