Superlative means the highest degree or best quality of something. When you describe your grandmother's apple pie as the most delicious dessert you've ever tasted, you're using a superlative: you're saying it ranks above all others.

In grammar, superlatives are words like fastest, tallest, most beautiful, or worst. They put something at the top or bottom of a scale. A cheetah is the fastest land animal. Mount Everest is the tallest mountain. These words help us identify extremes.

As a noun, a superlative means exceptional praise or an extremely high compliment. When your coach speaks in superlatives about your performance, she's using the most enthusiastic, impressive words she can find. If someone says your science project deserves only superlatives, they mean it's so good that ordinary compliments won't do it justice.

When you're genuinely the best, fastest, or most skilled at something, superlatives describe that achievement accurately. When you exaggerate and call everything “the best,” though, your superlatives stop meaning much to anyone listening.