Answer:
Context clues
Explanation:
If you spot an unfamiliar word, try rereading around the word. For example:
"Henry was antagonistic towards the younger kids. His hostility led to intervention by the teachers."
For this passage, we will say the word in question is"antagonistic." In the next sentence, we see the word hostility, and intervention by the teachers. This shows that Henry is acting hostile enough to be stopped by the teachers. We can safely assume that "antagonistic" means hostile, and possibly aggressive. This is the true definition of antagonistic, which shows that this method was helpful in finding the definition of the word.
The best way to practice this is reading along, and looking up the definitions of words after trying to find them out on your own. When they match up consistently, you know that you understand how to use context clues.