| Term | Definition |
| deterioration | ncu \ lower value |
| detest | vt inf \ hate someone or something very much |
| deviate | vi from \ do something which is different from the usual or common way of behaving : go in a different direction |
| diffidence | nu \ lack of confidence |
| digress | vi from \ move away from the main subject you are writing or talking about and to write or talk about something else |
| dilate | vi/t \ (cause a part of the body to) become wider or further open |
| diligent | adj about/in \ careful and using a lot of effort : done in a careful and detailed way |
| diminutive | adj \ very small |
| dingy | adj \ dark and often also dirty |
| disband | vi / stop being a group |
| discard | vi/t \ throw something away or get rid of it because you no longer want or need it : get rid of a card you are holding during a card game |
| discern | vt \ see, recognize or understand something that is not clear |
| dispatch | vt \ send something, especially goods or a message, somewhere for a particular purpose : kill someone |
| dissect | vt \ cut open something, especially a dead body or a plant, and study its structure : examine or consider something in detail |
| disseminate | vt \ spread or give out something, especially news, information, ideas, etc., to a lot of people |
| divert | vt from to/into \ cause something or someone to change direction : use something for a different purpose / take someone's attention away from something : entertain someone |
| divulge | vt wh \ make something secret known |
| doze | vi \ have a short sleep, especially during the day |
| drench | vt in/with +to the skin \ make someone or something extremely wet |
| drought | ncu \ a long period when there is little or no rain |
| drowsy | adj \ being in a state between sleeping and being awake |
| dubious | adj about \ thought not to be completely true or not able to be trusted : feeling doubt or uncertainty |
| dungeon | nc \ an underground prison, especially in a castle |
| durable | adj \ able to last a long time without becoming damaged |
| duration | nu \ the length of time that something lasts |
| dusk | nu \ the time before night when it is not yet dark |
| earthquake | nc \ a sudden violent movement of the Earth's surface, sometimes causing great damage |
| eccentric | adj/ nc \ strange or unusual, sometimes in an amusing way / not perfectly circular |
| eloquence | nu \ giving a clear, strong message |
| elucidate | vi/t \ explain or make clear |
| elusive | adj \ difficult to describe, find, achieve or remember |
| emit | vt \ send out a beam, noise, smell or gas |
| emphasis | nc/u on \ the particular importance or attention that you give to something : the extra force that you give to a word or part of a word when you are saying it |
| emulate | vt \ copy something achieved by someone else and try to do it as well as they have |
| endeavor | vi+inf / ncu \ try to do something \ an attempt to do something |
| energy | nu inf \ the power and ability to be physically and mentally active |
| enervate | vt \ make someone feel weak and tired |
| enhance | vt \ improve the quality, amount or strength of something |
| entice | vt into+~ing/ away from/ s.o+inf \ persuade someone to do something by offering them something pleasant |
| envious | adj of \ wishing you had what another person has |