Synchronic refers to events that happen at the same time and are related to each other. There are several synonyms for the word synchronic, including simultaneous, concurrent, contemporary, coexisting, and concomitant. All of these words convey the idea of things happening at the same time, but each has its own usage and connotation. One can use the word synchronous to describe things that happen in unison or coordination with each other. Concurrent describes events that take place at the same time, but without direct relation to each other. Contemporary refers to things that are happening in the present time, while concomitant describes events that occur alongside each other.