Use Ice - based weapons and attacks.
In Monster Hunter Stories, if you want to make the most of Zinogre's weakness, there are several things you can do. As we know Zinogre is weak to Ice. So, start by choosing a weapon that has an Ice element. You can either find one in the game or upgrade your existing weapon to have an Ice attribute. Next, consider the monsters in your party. If you have a monster that can perform Ice - based attacks, it will be a great addition. When in battle, don't just blindly attack. Wait for the right moment, like when Zinogre is about to perform a big move and is vulnerable. Then, unleash your Ice - based attacks for maximum damage. Additionally, you can also use items like Ice Bombs to further take advantage of its weakness.