|Origin:||instinctus, from instinguere 'to make someone wish to do something'|
in‧stinct [uncountable and countable]
instinct to do something
the human instinct to form relationships
Birds build nests by instinct.
Her instinct told her that something was wrong.
somebody's first instinct (=what someone feels like doing first when something happens)
His first instinct was to rush back to Isobel.