機縁 is read as きえん (kien) and means opportunity.
きえん
kien
きどうたい
riot police
きびん
smart
きげん
safety
きき
device
きみつ
secrecy
きかんじゅう
machine gun
きらい
(sea) mine
きかんし
engineer (on a train, ship, aircraft, etc.)
きび
subtle
きみつひ
secret funds
きじゅう
きみつほご
security (e.g. data, password, etc.)