Answer:
The correct answer is antonym.
Explanation:
An antonym is commonly defined as a word with opposite meaning. Such antonyms may encompass, on one hand, words pairs with opposite meanings which lie on the same spectrum, for instance, hot and cold. And on the other hand word pairs with opposite meanings which do not lie on the same spectrum, for instance, push and pull.
Bearing the described above in mind, it could be said that the sentence provided would result as follow: "When you come across a difficult word, look at other words and sentences for an antonym, a word with an opposite meaning."
