The term 'emphasis on a syllable' can be summarized as the act of stressing or emphasizing a particular syllable in a word or phrase. This is often done to add emphasis or to create a certain rhythm or cadence when speaking. The crossword solution for this term is 'STRESS, ' which is defined as the application of force or pressure to an object or person. This can also be used to refer to the act of emphasizing a syllable in a word or phrase.