between clauses and that are therefore integral to conveying and supporting a main idea (or main ideas) in communication. These words include prepositions, conjunctions, adverbs, particles, and relative pronouns, among others, as our title suggests. Note that while great effort has been made toward thoroughness in this Lexicon, we have not exhaustively treated all New Testament Greek prepositions, adverbs, particles, and the like. Rather, we have focused on the most common words, or words that are