an inborn pattern of activity or tendency to action common to a given biological species.

a natural or innate impulse, inclination, or tendency.

a natural aptitude or gift

an instinct for making money.

natural intuitive power.

noun

knowledge , reason

noun

aptitude , faculty , feeling , funny feeling * , gift , gut reaction * , hunch , impulse , inclination , intuition , knack , know-how * , nose * , predisposition , proclivity , savvy * , sense , sentiment , sixth sense * , talent , tendency , urge , aptness , bent , flair , genius , head , turn , insight , intuitiveness , penetration , sixth sense , appetency , eros , idea , libido , motivation , propensity