There are several synonyms for the word "midsummer" which is a time of year that occurs on or about the summer solstice. One of the popular synonyms for midsummer is "mid-year" since it is the midpoint of the year and represents the beginning of the second half of the year. Another synonym for midsummer is "Litha", which is derived from the ancient pagan festival that celebrated the summer solstice. Additionally, the word "solstice" itself can be used as a synonym for midsummer as it refers to the point in the year when the sun reaches its highest point in the sky. Other synonyms for midsummer include "summer equinox" and "longest day".