緣
緣 – Yuan2 – Reason, Cause, Fate, Hem, Edge
緣份 – Yuan2 Fen4 – Fate Portion — Fate, Destiny
A saying: 有緣千里來相會 – You3 Yuan2 Qian1 Li3 Lai2 Xiang1 Hui4 – Have Fate Thousand Li Come Mutual Meet — With fate, even if separated by a thousand miles, you will meet.
And the converse: 無緣對面不相逢 – Wu2 Yuan2 Dui4 Mian4 Bu4 Xiang1 Feng2 – Without Fate Opposite Side No Mutual Meet — Without fate, even across the same room, you will not meet.