What is most useful for deciding which dictornary definition is the best one for an unfamiliar word you have found ina a reading passage?

When deciding on the best dictionary definition for an unfamiliar Word, consider the context in which the Word is used in the reading passage. Look at how the Word is being used and the Words or phrases surrounding it to help determine the meaning that makes the most sense in that context. Additionally, consider consulting multiple reputable dictionaries to get a comprehensive understanding of the Word's potential meanings.