Lashon Kodesh contains layers of nuance whereby various words translated similarly actually present subtle differences. In Sheimos HaNirdafin, Horav Shlomo Wertheimer, zl, devotes an entire sefer to distinguishing between these synonyms.  With regard to friendship, the Torah breaks it down to three primary terms:  chaver; rei’a; and yedid.  Each expresses a different dimension of human connection which gives us an insight into the true meaning of friendship. The most common term is chaver, which is a friend by chibur, attachment.  This means that the relationship is not one of emotion, but rather, of commitment.  A chavrusa is a study partner…