[Serie: All About Japanese Particles]
Note: Adds force to a sentence. When it overlaps with zo (#67), it is somewhat less emphatic. Ze is used mostly by men.
1. Used to make a declaration to someone or underscore a point.
先に行くぜ。
Saki ni iku ze.
I’m going on ahead. / Leaving now. See you there.
その仕事、君に頼んだぜ。
Sono shigoto, kimi ni tanonda ze.
I’m counting on you to do that job. / It’s [the job’s] up to you now.
頑張るぜ。
Ganbaru ze.
I’m going to give it my best shot. / I’m hanging tough.
– Source: All about particles – A handbook of Japanese function words –