The term 'unearth' can be defined as to DISCOVER or bring to light something that was hidden or lost. This term can be used in a variety of crossword solutions, such as DETERMINE (9 letters), ASCERTAIN (9 letters), LEARN (5 letters), unbury (6 letters), REVEAL (6 letters), UNCOVER (7 letters), EXCAVATE (8 letters), DISINTER (8 letters), DISCOVER (8 letters), EXHUME (6 letters), FIND (4 letters), DIG (3 letters), EXPOSE (6 letters), digup (5 letters), and rootout (7 letters). All of these words refer to the act of uncovering something that was previously hidden or lost.