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At bottom, basically. For example,
Deep down she was a rebel
Although he would never admit it, deep down he was very fond of her
The American Heritage® Idioms Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Deep down, I'm pretty superficial.
(...) the arms so if you would grow, go straight up or deep down.
(...) unawares.... When a woman's kissed it's because, deep down, she wants to be kissed.
Nearby words for deep down
deep artery of clitoris
deep artery of penis
deep artery of thigh
deep brain stimulation
deep cervical vein
deep dorsal vein of clitoris
deep dorsal vein of penis
deep facial vein
deep femoral vein
deep flexor muscle of fingers
deep hack mode
deep inguinal ring
deep lingual vein
deep perineal space
deep peroneal nerve
deep petrosal nerve