In one sentence, describe what the following article is about:

Worst means "worse than all the others; least helpful or skillful; most unfavorable or corrupt." Worst is a form of the word bad. Worst is a superlative adjective. A superlative adjective is one which is used to denote the extreme highest or lowest out of a group of nouns. This is used when comparing 3 or more things.  Unlike worse, you can’t use worst when only comparing 2 things. Dirty diapers smell worse than rotten milk, but week-old fish is the worst of all. Math is the worst of all my 5 classes. Worse and worst correspond to words like colder and coldest.  Use worse whenever you would use a -er word. The -er is the comparative. The weather in Boston is colder than it is in Miami. / The weather in Boston is worse than it is in Miami. Use worst whenever you would use a -est word. The -est is the superlative. Washington state has the wettest weather in the US. / Washington state has the worst rain in the US. The growing intensity scale of the word is: bad - worse - worst. Worst is the most bad and worse is more bad than bad. The weather in November is bad, but it's worse in December. The worst weather all winter is in January. Since worst is used to single out one inferior thing, it always comes after the word the.  I disagree. Eggplant and boiled cabbage are both vile, but squash is the worst! That is the worst cake I have ever tasted. Use worst to compare something to other things that are implied but not mentioned outright.  Chartreuse is the worst color [of all]. He’s the worst person imaginable [in the entire human population].

Summary:
Know the definition of worst. Use worst to state that one thing is inferior to multiple other things. Understand the -er and -est correlation. Worst comes after the word the. Be aware when the comparison is implied.