leveller:
(also ‘leveler’; plural: ‘levellers‘; for the right pronunciation, please click here)

English Levellers, 1640s
(always with a capital first ‘L’) a member of the English radical political movement who wanted equality in the society in 1640s;
a person who wishes to get rid of all social differences in a society/world;
a person (or thing) that makes something level,

a global social leveller, trying to level out inequalities in societies
Most Americans believed that President Obama was a leveller who could level the financial, social and racial inequalities with his policies.
Levellers played a critical role in the English Civil War in the mid 17th century.
There have been several levellers in politics, religion and social structure throughout our history, but the more they try to level, the more uneven the society has become.
Some people say ‘Political reforms are great levellers’ and some others believe ‘Belief in religion is a greater leveller’ but some strongly argue that ‘Death is the greatest leveller’!

a leveller (worker) levelling a surface using a leveller (device)
