枕 ⇒
枕头 zhěntou, [枕頭], pillow
枕 zhěn, pillow/to pillow/to rest one's head on (Taiwan pr. [zhèn] for this sense)
高枕无忧 gāozhěnwúyōu, [高枕無憂], to sleep peacefully (idiom)/(fig.) to rest easy/to be free of worries
同床共枕 tóngchuánggòngzhěn, to share the bed/(fig.) to be married
枕骨 zhěngǔ, occipital bone (back of the skull)
靠枕 枕套 zhěntào, pillowcase
落枕 làozhěn, to have a stiff neck after sleeping/(of the head) to touch the pillow
枕席 zhěnxí, pillow mat/pillow and mat/bed
枕巾 zhěnjīn, pillow cloth
枕边风 zhěnbiānfēng, [枕邊風], pillow talk
枕木 zhěnmù, railroad tie/sleeper