appalled (adj)
/əˈpɔːld/ 

shocked very much

appeal (v)
/əˈpiːl/

to ask people to do something or to behave in a particular way

dedicated (adj)
 /ˈded.ɪ.keɪ.tɪd/ 

spending all your time and effort on something

disaster-stricken (adj)
/dɪˈzɑː.stər ˈstrɪk.ən/

being destroyed by disaster

epidemic (n)
/ˌep.ɪˈdem.ɪk/

a situation in which a disease spreads very quickly and infects many people

hesitation (n)
/ˌhez.ɪˈteɪ.ʃən/

a pause before doing something, or a feeling that you should not do it, especially because you are nervous, embarrassed, or worried

initiate (v)
/ɪˈnɪʃ.i.eɪt/

to make something start

tsunami (n)
/tsuːˈnɑː.mi/

a very large wave or series of waves caused when something such as an earthquake moves a large quantity of water in the sea

wash away (phrase)
/wɒʃ əˈweɪ/

carry something away

humanitarian (adj)
/hjuːˌmæn.ɪˈteə.ri.ən/ 

relating to efforts to help people who are living in very bad conditions and are suffering because of a war, flood, earthquake etc

livelihood (n)
 /ˈlaɪv.li.hʊd/

something such as your work that provides the money that you need to live

catastrophe (n)
/kəˈtæs.trə.fi/

an event that causes a lot of damage or makes a lot of people suffer

federation (n)
 /ˌfed.ərˈeɪ.ʃən/

a group of organizations, countries, regions, etc. that have joined together to form a larger organization or government

wartime (n)
/ˈwɔː.taɪm/ 

the period when a war is taking place

The World Health Organization (n)
/wɜːld helθˌɔː.ɡən.aɪˈzeɪ.ʃən/

a department of the United Nations that aims to improve health all over the world and limit the spread of diseases

objective (n)
 /əbˈdʒek.tɪv/

something that you plan to achieve, especially in business or work

enforce (v)
/ɪnˈfɔːs/ 

to make sure that a law or rule is obeyed by people

charity (n)
 /ˈtʃær.ɪ.ti/ 

the quality of being kind to people and not judging them in a severe way

homeless (adj)
 /ˈhəʊm.ləs/ 

without a place to live

establish (v)
 /ɪˈstæb.lɪʃ/

to start an organization or company