The word "set" is one of the most versatile words in the English language, with many meanings depending on the context. Here are some of the primary meanings and uses of "set":

Meanings of "Set"

1. As a Verb

• To put or place something somewhere:
  She set the book on the table.

• To arrange or fix something in a particular position or condition:
  He set the alarm for 7 a.m.

• To establish or decide on something:
  They set the date for the meeting.

• To become firm or hard:
  The jelly needs time to set.

• To adjust or regulate:
  Set the thermostat to 72 degrees.

2. As a Noun

• A group or collection of things that belong together:
  A set of dishes, a chess set.

• In mathematics, a collection of distinct objects:
  The set of all even numbers.

• In film or theater, the scenery and props used for a production:
  The actors performed on a beautifully designed set.

• A series of repetitions in exercise or sports:
  He did three sets of push-ups.

3. As an Adjective

• Fixed or determined:
  They have a set schedule.

• Ready or prepared:
  Are you all set to go?

If you want, I can provide definitions tailored to a specific context like mathematics, sports, or everyday use!