instinct
US /ˈɪn.stɪŋkt/
UK /ˈɪn.stɪŋkt/

1.
本能
an innate, typically fixed pattern of behavior in animals in response to certain stimuli
:
•
Birds build nests by instinct.
鸟类凭本能筑巢。
•
The salmon's instinct to return to its birthplace is remarkable.
鲑鱼返回出生地的本能令人惊叹。
2.
直觉, 本能反应
a natural or intuitive way of acting or thinking
:
•
She knew by instinct that something was wrong.
她凭直觉知道出了问题。
•
My first instinct was to run away.
我的第一直觉是逃跑。