What are context clues?

After finding crumbs all over Ben's bed, Mom concluded that the dog ate the cookies.

Your Turn: Define the word concluded by using your context clues.

Alex thought that Ken's theories about their substitute teacher being an alien were absurd.

Your Turn: Define the word absurd by using your context clues.

Choose one of the following: elegant, melancholy, transparent, dreadful, eager, humble, mutter.

Using one of the words from above, create a sentence that utilizes context clues in order to explain the meaning of the word. (Refer to IDEAS chart for help)