think•ing /
k/ noun, adj.
noun [U]
1 the process of thinking about sth: I had to do some quick thinking.—see also lateral thinking, wishful thinking
2 ideas or opinions about sth: What is the current thinking on this question? 
She explained the thinking behind the campaign. see way n. adj. [only before noun] intelligent and able to think seriously about things: the thinking woman’s magazine Thinking people agreed on the need for radical reform.
©Oxford University Press, 2005.