adjective | adverb | noun
deepdeep1 /dip/ ●●● S2 W1 adjective 1
GOING FAR DOWN going far down from the top or from the surface OPP shallow: deep snow a deep cut on his arm5 inches/7 feet etc. deep The river is 40 feet deep in the middle. How deep was the water?2GOING FAR IN going far in from the front edge of something OPP shallow: 5 inches/3 feet etc. deep a shelf three feet long and eight inches deep How deep do the counter tops need to be?3FEELING/BELIEF [only before noun] a deep feeling or belief is very strong and usually sincere SYN profound: I felt deep disappointment. his deep faith in God He has a deep sense of honor.make/leave a deep impression on somebody (=have an effect on someone that lasts a long time)4SERIOUS problems that are deep are serious or severe: deep divisions in the community He fell into a deep depression.5SOUND a deep sound is very low OPP high: Jones has a strong deep voice.6COLOR a deep color is dark and strong OPP pale, light: a beautiful deep purple7BREATH breathing a lot of air in or out of your lungs OPP shallow: a deep sigh It’s okay, just relax, take a deep breath.8DIFFICULT TO UNDERSTAND important but complicated or difficult to understand: a deep conversation about religion9PERSON a deep person is serious and thinks very hard about things, often in a way that other people find difficult to understand OPP shallow: He is a deep sensitive person.10deep sleep sleep that is difficult to wake up from: Finally, her mother fell into a deep sleep (=began to sleep in this way).11in deep trouble/water in a bad or difficult situation, especially because you have done something wrong or stupid: Everyone agrees this city is in deep financial trouble.12deep in thought/conversation etc. thinking so hard, talking so much, or paying so much attention to something that you do not notice anything else that is happening around you: Moore was deep in prayer.13go off the deep end informal to suddenly become crazy, angry, or violent: Sara really went off the deep end, taking drugs and living on the streets.14BALL a deep ball is hit, thrown, or kicked to a far part of the sports field[Origin: Old English deop] → see also depth adjective | adverb | noun
deepdeep2 ●●● W3 adverb 1[always + adv./prep.] a long way into or below the surface of something: deep down/below/inside etc. She pushed her stick deep down into the mud. Crews are working deep underground, building a tunnel.2deep down a)if you know or feel something deep down, that is what you really feel or know even though you do not admit it: She knew, deep down, that he did not love her. b)if someone is good, evil, etc. deep down, that is what he or she is really like even though this quality is usually hidden: Deep down, Bill is a very caring person.3deep in debt owing a lot of money: The medical bills put us deep in debt.4run/go deep a feeling that runs deep is felt very strongly, especially because of things that have happened in the past: Bitterness runs deep among Kathy’s family members. → see also still waters run deep at still2 (4)5be in (too) deep informal to be very involved in a situation so that it is difficult to get out of: I’m in too deep to leave the business now.6two/three/four etc. deep having two, three, four, etc. rows or layers of things or people: People stood ten deep along the parade route.7deep into the night until very late: They talked deep into the night. adjective | adverb | noun
deepdeep3 noun the deep poetic the ocean