The term 'onto' can be found in four different crossword solutions: UPON (4 letters), HEP (3 letters), AWARE (5 letters), GLOM (4 letters), and AWAREOF (7 letters). UPON is a preposition meaning 'on the top of or to a position on'. HEP is an adjective meaning 'alert and up-to-date'. AWARE is an adjective meaning 'having knowledge or cognizance'. GLOM is a verb meaning 'to grab or snatch'. AWAREOF is an adjective meaning 'having knowledge or cognizance of'. All of these words are related to the term 'onto', which is a preposition meaning 'on the top of or to a position on'.