NOTE: Adds force to a sentence. When it overlaps with zo, it is somewhat less emphatic. Ze is used mostly by men.
１．Used to make a declaration to someone or underscore a point.
Saki ni iku ze.
I'm going on ahead．
「Leaving now. See you there.」
Sono shigoto, kimi ni tanonda ze.
I'm counting on you to do that job.
「It's [the job's] up to you now.」
I'm going to give it my best shot.
「I'm hanging tough.」
Hope this helps!
°˖ ✧◝(○ ヮ ○)◜✧˖ °こゆうきあいはら°˖ ✧◝(○ ヮ ○)◜✧˖ °