from The American Heritage® Dictionary of the English Language, 4th Edition
- Together; with: synecology.
- United: syncarp.
- Same; similar: sympatric.
- At the same time: synesthesia.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- with, together
from the GNU version of the Collaborative International Dictionary of English
- A prefix meaning with, along with, together, at the same time. Syn- becomes sym- before p, b, and m, and syl- before l.
Greek sun-, from sun; see ksun in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Ancient Greek συν- (syn-), from σύν (sun, "with, in company with, together with"). (Wiktionary)