thinking

THINK'ING, ppr. Having ideas; supposing; judging; imagining; intending; meditating.

1. a. Having the faculty of thought; cogitative; capable of a regular train of ideas.

Man is a thinking being.

THINK'ING, n. Imagination; cogitation; judgment.

I heard a bird so sing,

Whose music, to my thinking, pleas'd the king.