deep

UK: diːp | US: diːp

Definition
  1. adj. extending far down from the top or surface

  2. adj. intense or extreme in degree

  3. adj. difficult to understand; profound

  4. n. (the deep) a vast or immeasurable extent, such as the sea

Structure
deep <far down>
Etymology

The word "deep" originates from Old English dēop, meaning "extending far downward" or "profound." It shares roots with Proto-Germanic deupaz and is related to Old High German tiof and Old Norse djúpr. The core concept of depth—whether physical, emotional, or intellectual—has remained consistent across its evolution.

Examples
  1. The lake is very deep near the center.

  2. She fell into a deep sleep after the long journey.

  3. His lecture on quantum physics was too deep for beginners.

  4. Divers explored the mysteries of the deep.

  5. Her love for music runs deep.