thinking

noun

1. (uncountable, usually)The action or process of using one's mind to consider or reason about something.
2. (uncountable, usually)A thought.

   “What is your thinking on this subject?”

   “But how the neurons are organised in these lobes and ganglia remains obscure. Yet this is the level of organisation that does the actual thinking—and is, presumably, the seat of consciousness.”

   “When BR "back-checked" (BR's term) the financial results of steam replacement across 49 schemes, where DMUs had been substituted on the London Midland Region, only one was now profitable. BR thinking on such substitutions referred to "betterment", not profit or loss.”

   “The current thinking among Donald Trump’s campaign advisers and those close to the former president is that he is not planning on participating in next week’s Republican presidential primary debate, three sources familiar with his plans tell CNN, and has been proposing counterprogramming to the event.”

verb

1. (form-of, gerund, participle, present)present participle and gerund of think

   “I'm thinking about inventing a new perpetual-motion machine.”

   “He was thinking; but the glory of the song, the swell from the great organ, the clustered lights, […], the height and vastness of this noble fane, its antiquity and its strength—all these things seemed to have their part as causes of the thrilling emotion that accompanied his thoughts.”