scour /ˈskaʊə(r)/ [v]: to search a place or thing thoroughly in order to find somebody/something 捜し回る
Unscrupulous contractors scour the countryside in search of homeless, itinerant and unemployed men and women to trick them into forced labour.
megalomania /ˌmeɡələˈmeɪniə/ [n]: a psychological state characterised by delusion of grandeur 誇大妄想癖
*"people who have crazy hunger for power and wealth"という意味で、過去のmegalomaniaたちは、アレキサンダー大王、ナポレオン、ジンギスカン...なのだそうです。確かに実現してしまえば「妄想癖」とは呼ばないですよね。
profligate /ˈprɒflɪɡət/ [adj]: recklessly wasteful 浪費/乱費する
Young people today have been "disinherited"from America's promise of economic opportunity because of profligate government spending and the endless expansion of the welfare state.
The most senior doctor in England has described the level of NHS waste as 'profligate' as officials admit £1.8 billion spent on unnecessary operations and medicines (Telegraph)
Even though that was never the view of the majority of Greeks, the German press responded by portraying the Greeks as "lazy, profligate and irresponsible". (BBC)
strife /straɪf/ [n]: [uncountable] (formal or literary) angry or violent disagreement between two people or groups of people 闘争、紛争、争い
His cinematic entrance in "Lawrence of Arabia" came to symbolize a romanticism about the Middle East that's since been replaced by religious strife and war.
legion /ˈliːdʒən// [adj]: very many 多数で、無数で
*名詞になると"a large group of army soldiers"の意味。
The medical uses of herbs are legion.