deep

/dip/
adverb
  1. To a great depth; far down or in.
    • He buried the treasure deep underground.
    • She breathed deeply before starting her speech.
    • The submarine dove deep into the ocean.
noun
  1. The deep part of something, especially the ocean.
    • Creatures of the deep are rarely seen by humans.
    • The ship sank to the deep of the Atlantic.
    • He stared into the deep, wondering what lay below.
adjective
  1. Extending far down from the top or surface.
    • The hikers walked through a deep canyon.
    • The well is very deep, so be careful when you look inside.
    • We swam in the deep end of the pool.
  2. Extending far inward from the edge or front.
    • They lived deep in the forest, far from any road.
    • The bookshelf is two feet deep.
    • The wound was deep and required stitches.
  3. Strong, intense, or extreme in degree.
    • He was in a deep sleep and didn't hear the alarm.
    • The movie left a deep impression on the audience.
    • She felt a deep sense of gratitude toward her mentor.
  4. Low in pitch; full and resonant.
    • We heard a deep rumble of thunder in the distance.
    • The cello produces a deep sound.
    • The singer had a deep, rich voice.
  5. Profound or serious in meaning or quality.
    • The poem has a deep message about love and loss.
    • The philosopher asked deep questions about the meaning of life.
    • Their conversation was surprisingly deep for a first date.
Antonyms
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