Learn Danish: Løven er stærkere end hunden. - The lion is stronger than the dog.

We take the basic adjective stærk (strong) and add the ending -ere to make stærkere. This is very similar to adding "-er" in English to compare things!

Does the ending on stærkere change depending on the gender of the noun?

No! While basic adjectives change depending on whether the noun is an en-word or an et-word, the comparative form with -ere never changes. It is always stærkere for both genders and also for plural nouns.

Does the word end mean the same thing as the English word "end"?

It looks exactly the same, but it is a false friend. In Danish, end is used to compare two things and translates to "than". So stærkere end means "stronger than".

As a refresher, why aren't there separate words for "the" in front of the lion and the dog?

Remember that in Danish, the word for "the" is usually attached to the end of the noun. Because løve (lion) and hund (dog) are both en-words, they take the suffix -en to become løven (the lion) and hunden (the dog).