syn- /sin-/, sy- /si-/, syl- /sil-/, sym- /sim-/ or sys- /sis-/

Signifying together, with

• foreshocks
• foreshore
• foreshores
• foreshorten
• foreshortened
• foreshortening
• foreshortenings
• foreshortens
• foreshow
• foreshowed
• foreshowing
• foreshown
• foreshows
• foreside
• foresides
• foresight
• foresighted
• foresightful
• foresightless
• foresights
• foresignified
• foresignifies
• foresignify
• foresignifying
• foreskin