syn- — with, together, same time (affix)

syndrome B1

/ˈsɪndɹoʊm/ A group of symptoms or signs that together point to a particular illness or condition. M S

syndicate C2

/ˈsɪn.də.kət/ a group of people or organizations that combine resources to carry out a business, project, or shared purpose M S

synchronize C2

/ˈsɪŋ.kɹə.naɪːz/ make synchronous and adjust in time or manner M S

synthesis C2

/ˈsənθəsəs/ The combining of separate ideas, things, or influences into a single, coherent whole. M S

synonym B2

/ˈsɪn.əˌnɪm/ A word or phrase that means the same, or nearly the same, as another. M S