Interclusion is a seldom-used term that means the act of concluding or closing. However, there are several synonyms for this word that can be used in its place to convey the same meaning. One such synonym is "conclusion," which refers to the end or final part of something. Another synonym for interclusion is "termination," which means the action of bringing something to an end. Other words that can be used in place of interclusion include "closure," "finale," "endgame," and "culmination." Regardless of the word chosen, it is important to use the appropriate synonym to convey the intended meaning.