指 zi2 gi2 zeng2 zoin2

This character 指 can be said as zi2 gi2 zeng2 or zoiⁿ2 and I have put together some notes so you can learn how to use this character and in Mandarin it is all zhi3.

zi2bhung5 指紋｜指纹	fingerprint	zhi3wen2 指紋｜指纹
zi2ing3 指印	fingerprint, thumb print	zhi3yin4 指印

 

ciu2zi2 手指 or gai3zi2 戒指	ring – (finger ring)	jie4zhi5 戒指 jie4zi5 戒子
ciu2zoin2 手指	finger	shou3​zhi3​ 手指 zhi3tou5 指頭｜指头

zeng2bhuê2gian2 指尾仔	little finger, pinkie finger, fifth digit	xiao3zhi3 小指
zeng2gah4 指甲	fingernail	zhi3jia5 指甲
zeng2tao5gong1 指頭公｜指头公	thumb	da4mu5zhi3 大拇指

 

gi2 指	to point at	zhi3 指
gi2 hiang3 dangboin5 指向東畔	to point towards the eastern part	zhi3xiang4 dong1bian5 指向東邊｜指向东边

 

ka1zoin2 骹指	toes	jiao3zhi3tou5  腳趾頭｜脚趾头
ka1zoin2gah4 骹指甲	toenails	jiao3zhi3jia5 腳指甲｜脚指甲

Therefore how one learn all of these in one go. I suggest you do not look at the characters until your Chinese has improved. Learn to say it using the Romanised Teochew. Ask a person who is fluent in Teochew to say these words for you and record them. 

I wish you well in learning Teochew.