THINK'ING, participle present tense Having ideas; supposing; judging; imagining; intending; meditating. 1. adjective Having the faculty of thought; cogitative; capable of a regular train of ideas. Man is a thinking being. THINK'ING, noun Imagination; cogitation; judgment. I heard a bird so sing, Whose music, to my thinking pleas'd the king.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI