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1.
The attitude of caring and worrying about the world, or earth. Wanting to change it for the better, through people, environment, etc.
She's strong in her worldism, and last I heard, she was planning some sort of big web site.
by KelseexGore October 09, 2007
 
2.
Worldism is a bit of truth derived from worldly ways or wisdom.
The idea that the world and its wisdom is truth.
The truth is infinite but worldisms are fadacious.
by wwwjohnjewelcom July 17, 2009