1. guesswork.   eccentricity   cartographer   conjecture   fusion   Hint Half-n-half Clue   2. parallelism or similarity.   dissection   analogy   delirium   die   Half-n-half Clue   3. mode of formation or origin.   genesis   flux   equilibrium   apogee   Half-n-half Clue   4. science dealing with sound.   correlation   clavicle   component   acoustics   Half-n-half Clue   5. constituent or element.   homeostasis   corollary   component   conjecture   Half-n-half Clue   6. loss of speech.   balm   aphasia   centrifuge   degradation   Half-n-half Clue   7. secret code used to encrypt messages.   cipher   eddy   assumption   acoustics   Half-n-half Clue