Set is a tiny word with an unusually large job. In major dictionaries, its entry can be one of the longest because the word has many meanings and appears in many different patterns.
It works as several parts of speech:
- Verb: Please set the glass on the table.
- Noun: That chess set was a gift.
- Adjective: We followed the set route.
The meanings are related, but not identical. Sometimes set means to place something. Sometimes it means to become fixed, as in jelly set overnight. Sometimes it refers to a group of things, as in a set of keys.
This is why the dictionary entry grows so long. A short word that has been used for centuries tends to collect many senses, expressions, and examples. Compare set with a more specific verb like place. Place is useful, but it does not stretch across as many everyday meanings.
So the long entry is not just a curiosity. It shows how flexible English can be, and how one common word can do a remarkable amount of work.