Ningnin

It is composed of two syllables: "Ning" and "Nin".

Spelling	ning
Closest English pronunciation	/nɪŋ/
Hint	"no" + "sing".
Chinese Pinyin	nīng níng nǐng nìng
Common characters in names	宁 凝

Spelling	nin
Closest English pronunciation	/nɪn/
Hint	"no" + "in".
Chinese Pinyin	nīn nín nǐn nìn
Common characters in names	(Common in language but rare in names) 您