Spondaise is a term used in poetry and music to describe a metrical foot consisting of two stressed syllables. It is also known as a spondee or spondaic foot. Synonyms for spondaise include double stress, heavy stress, and double accent. These terms refer to the emphasis placed on each syllable in a spondaic foot, which creates a strong, steady rhythm in poetry and music. Other related terms include trochaic and dactylic feet, which also involve stressed syllables but in different patterns. Understanding the basic concepts of metrical feet is essential for appreciating and analyzing poetry and music.