synergic

adj. 协作的，合作的

symphony, symposium, symptom, symptomatic, synagogue, synapse, sync (also synch), synchromesh, synchronization, synchronisation, synchronize, synchronize, synchronise, synchronous, syncopate, syncopation, syncope, syndicalism, syndicalist, syndicate, syndication, syndrome, synod, synonym, synonymous, synopsis, synoptic, syntactic, syntactical, syntactically, syntax, synthesis, synthesize, synthesize, synthesise, synthesizer, synthesiser, synthetic, synthetically, syphilis, syphilitic, syringa, syringe, syrup,