The term HEIGHT has four crossword solutions: ALTI (4 letters), ACRO (4 letters), ACR (3 letters), and ORCA (4 letters). ALTI is a prefix derived from the Latin word altus, meaning 'HIGH' or 'TALL'. ACRO is a prefix derived from the Greek word akros, meaning 'highest point'. ACR is a prefix derived from the Greek word akros, meaning 'highest point', but with the letter 'o' removed. ORCA is a prefix derived from the Latin word orcum, meaning 'SUMMIT'. All of these prefixes refer to the concept of HEIGHT or elevation.