1. digit/ noun /ˈdɪdʒ.ɪt/
   any one of the ten numbers 0 to 9.
   e.g. The number 345 contains three digits.
2. disfigure/ verb /dɪsˈfɪɡ.ər/
  to spoil the appearance of something or someone, especially their face, completely.
  e.g. This part of the old town has been disfigured by ugly new buildings.
3. drain/ verb /dreɪn/
  If you drain something, you remove the liquid from it, usually by pouring it away or allowing it to flow away, and if something drains, liquid flows away or out of it.
  e.g. Don't bother drying the pans - just leave them to drain.
  If you drain a glass or cup, you drink all the liquid in it.
4. insight/ noun /ˈɪn.saɪt/
  (the ability to have) a clear, deep and sometimes sudden understanding of a complicated problem or situation.
  e.g. It was an interesting book, full of fascinating insights into human relationships.
  insightful/ adjective /ˈɪn.saɪt.fəl/
5. psyche/noun /ˈsaɪ.ki/
  the mind, or the deepest thoughts, feelings or beliefs of a person or group.
  e.g. Peru is a very traditional country, and embedded in its psyche is a love of ceremony.
6. simplicity/ noun /sɪmˈplɪs.ɪ.ti/
  when something is easy to understand or do.
  e.g. The advantage of the plan is its simplicity.
7. skin/ noun /skɪn/
  the natural outer layer which covers a person, animal, fruit, etc.
  e.g. Native Americans used to trade skins (= the skins of animals that have been removed from the body, with or without the hair).
  any outer covering.
  e.g. The bullet pierced the skin of the aircraft.
8. solemn/ adjective /ˈsɑː.ləm/
  serious and without any humour.
  e.g. Everyone looked very solemn.
  solemn promise/commitment/undertaking, etc.
  an agreement which you make in a serious way and expect to keep.
  solemnly/ adverb /ˈsɒl.əm.li/
9. soul/ noun/ soʊl/
  the spiritual part of a person which some people believe continues to exist in some form after their body has died, or the part of a person which is not physical and experiences deep feelings and emotions.
  e.g. She suffered greatly while she was alive, so let us hope her soul is now at peace.
10. turn/ verb/tɝːn/
   to (cause to) move in a circle round a fixed point or line.
   e.g. She turned the door knob and quietly opened the door.
11. wizard/ noun /ˈwɪz.əd/
   a man who is believed to have magical powers and who uses them to harm or help other people.
   someone who is an expert at something or who has great ability in a particular subject.
   e.g. Your mother's a wizard at Scrabble.
12. anticipate/ verb /ænˈtɪs.ɪ.peɪt/
   to imagine or expect that something will happen, sometimes taking action in preparation for it happening.
   e.g. We had one or two difficulties along the way that we didn't anticipate.
   e.g. The anticipated inflation figure is lower than last month's.
13. breakthrough/ noun /ˈbreɪk.θruː/
   an important discovery or event that helps to improve a situation or provide an answer to a problem.
   e.g. Scientists are hoping for a breakthrough in the search for a cure for cancer.
14. flexibility/ noun/ ˌflek.sɪˈbɪl.ɪ.ti/
   able to change or be changed easily according to the situation.
   e.g. The advantage of this system is its flexibility. 
   flexible/ adjective /ˈflek.sɪ.bl̩/
   e.g. My schedule is quite flexible - I could arrange to meet with you any day next week.
   flexibly/ adverb /ˈflek.sɪ.bli/
   e.g. Today's schedule of events is organized flexibly so that people can decide for themselves what they want to do.
15. likelihood/ noun /ˈlaɪ.kli.hʊd/
  the chance that something will happen.
  e.g. This latest dispute greatly increases the likelihood of a strike.
  e.g. There is every likelihood that more jobs will be lost later this year.
16. pursue/ verb /pɚˈsuː/
   to follow someone or something, usually to try to catch or kill them.
   e.g. He was killed by the driver of a stolen car who was being hotly pursued by the police.
17. spare/ adjective /sper/
   If something is spare, it is available to use because it is extra.
   e.g. We've got a spare room if you want to stay overnight with us.
   spare time
   time when you are not working.
   e.g. I like to do a bit of gardening in my spare time.
18. strenuous/ adjective /ˈstren.ju.əs/
   needing or using a lot of physical or mental effort or energy.
   e.g. He rarely does anything more strenuous than changing the channels on the television.
   strenuously/ adverb /ˈstren.ju.ə.sli/
   Most local residents strenuously object to the building proposals.
19. volunteer/ noun /ˌvɑː.lənˈtɪr/
   a person who does something, especially helping other people, willingly and without being forced or paid to do it.
   e.g. The Health clinic is relying on volunteers to run the office and answer the telephones.
20. centenarian/ noun /ˌsen.təˈneə.ri.ən/
   someone who is a hundred years old or more.
21. antioxidant/ noun /ˌæn.tiˈɒk.sɪ.dənt/
   a substance which slows down the rate at which something decays because of oxidization (= combining with oxygen).
22. longevity/ noun/lɑːnˈdʒev.ə.t̬i/
   living for a long time.
   e.g. To what do you attribute your longevity?
23. rest/ verb /rest/
   to (cause someone or something to) stop doing a particular activity or stop being active for a period of time in order to relax and get back your strength.
  e.g. The doctor told him that he should rest for a few days.
  be resting
  to be an actor who does not have any work.
  e.g. Over 90% of professional actors are resting at any given time.
24.purpose/noun /ˈpɜː.pəs/
  why you do something or why something exists.
  e.g. The purpose of the research is to try and find out more about the causes of the disease.
  on purpose
  If you do something on purpose, you do it intentionally, not by accident.
  e.g. I didn't do it on purpose - it was an accident.
  determination or a feeling of having a reason for what you do.
  e.g. I've always admired her for her strength of purpose.
  serve a purpose
  to have a use.
  e.g. These small village shops serve a very useful purpose.
25. contribute/ verb /ˈkɒn.trɪ.bjuːt/
   to give something, especially money, in order to provide or achieve something together with other people.
   e.g. Her family have contributed £50,000 to the fund.
   to write articles for a newspaper, magazine or book.
   e.g. She contributes to several magazines.