say it: THING-king
thinking is a noun and adjective meaning "the process of using your mind to consider something carefully". It carries 2 recorded senses.
the process of using your mind to consider something carefully
“thinking always made him frown”
“she paused for thought”
endowed with the capacity to reason
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for thinking come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.