Dr. Mohammad Hossein Hariri Asl 
External External (adj) /ɪkˈstɜː.nəl/ US /-ˈstɝː-/ occurring or existing outside a person’s body, country, organization, place, object, etc. extraneous, superficial – extrinsic: The company’s financial success has been undermined by so much external pressure.
Age-old Age-old (adj) /ˈeɪdʒˌəʊld/ US /-ˌoʊld-/ existing for a long period of time – ancient – long-existing: the age-old issue of racial discrimination
Enduring Enduring (adj) /ɪnˈdjʊə.rɪŋ/ US /-ˈdʊr.ɪŋ/ continuing and existing for a very long period of time – lasting: It was so difficult for her to delete the enduring bitter memories of her dismal childhood.
Astounding Astounding (adj) /əˈstaʊn.dɪŋ/ so surprising that it is almost incredible – astonishing – amazing: To her astonishment, the project was completed with an astounding success.
Intact Intact (adj) /ɪnˈtækt/ complete and not damaged – undamaged – unharmed: We’re planning a vacation to a distant area with intact nature for a week.
Underscore Underscore (verb)/ˌʌn.dəˈskɔːʳ/ US /-dɚˈskɔːr/ 1. to draw a line under a word, phrase, etc. to emphasize its importance and draw more attention to it – underline: Underscoring while reading is a consciousness-raising technique. 2. to put emphasis on something – emphasize: She underscored the plot of the story by dint of dramatization and visual …
Scant Scant (adj) /skænt/ 1. insufficient and very little – not enough – inadequate: The court decision was adjourned because of scant evidence.
Indictment Indictment (noun) /ɪnˈdaɪt.mənt/ 1. a very obvious sign that something, e.g. a method, system, etc. is so bad and ineffective – condemnation – criticism: We’ve seen enough of the damning indictment of the proposed useless method. 2. a formal accusation of a serious crime – charge – prosecution: He has received an indictment regarding …
Furnace Furnace (noun) /ˈfɜː.nɪs/ US /ˈfɝː-/ 1. a large container for a huge fire that is heated at a high temperature to melt and burn metal and other substances – boiler: It’s time we changed the furnace of this steel factory as it’s been overused. 2. a piece of equipment that is specifically used to …
Skull Skull (noun) /skʌl/ all the hard bones around the brain, which give the head its form: Several ancient human skulls were found in their last excavation.