spine · noun C /spɑɪn/
spine
C1 the long structure of bones down the center of your back, which supports your body
Dictionary example:
She injured her spine in a riding accident.
Learner example:
I use this cent[e]r because my doctor recommended [I] follow a very specific type of exercise to correct problems that I have [with] my spine. (International English Language Testing System; C1; Spanish)
send shivers/a shiver down your spine
C2 to make you feel afraid or excited
Dictionary example:
The sound of his voice sent shivers down my spine.
Learner example:
Simply looking at her sent shivers down his spine - there was the love of his life, the dearest woman on good old Earth, that he's never met before. (Certificate of Proficiency in English; C2; Polish)