main

UK: meɪn | US: meɪn

Definition

  1. adj. most important; principal

  2. n. a principal pipe or channel in a utility system (e.g., water main)

  3. n. (archaic) the open ocean

Structure
main <strong>
Etymology

The word "main" traces back to Old English mægen, which conveyed physical or metaphorical strength. Over time, its meaning shifted from "power" to "principal" or "most important," reflecting the idea of centrality or dominance. In nautical contexts, "main" referred to the open sea (e.g., "Spanish Main"), emphasizing vastness. The utility sense (e.g., "water main") derives from the concept of a primary conduit.

Examples

  1. The main reason for his success was hard work.

  2. Repair crews fixed a burst water main downtown.

  3. (Archaic) Pirates feared storms on the main.

  4. She focused on the main points of the lecture.

  5. The main entrance is on the north side of the building.