A good place to begin to examine words and their meanings is your study Bible. Here are a few additional resources that may help you to examine a specific words, meanings and nuances.
Other Reference Resources
Provides biographical information for thousands of significant people throughout history, around the world, and across all disciplines and subject areas.
Provides biographical and bibliographical information and references to thousands of international authors.
The "STEP" in STEP Bible stands for Scripture Tools for Every Person. This free online resource containing Bibles and commentaries. Tyndale House provides oversight of STEP Bible, with Crosswire serving as a partner for software and Bible translations.