Zach is a alternative form of zak.
As proper nouns the difference between zak and zach
is that zak is a male given name, diminutive of Zachariah and Zachary while Zach is a male given name, diminutive of Zachariah and Zachary.
As a noun zak
is money.
zak
English
Noun
(
en noun)
(South Africa, slang) Money.
Sixpence or a small amount of money.
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zach
English
Alternative forms
* Zac
* Zack
* Zak