機先 is read as きせん (kisen) and means forestall.
きせん
kisen
きせんをせいする
to beat someone to the punch
でさききかん
branch office
きかい
chance
きかん
engine
きのう
function
きこう
mechanism
きちょう
captain (of an aircraft)
きたい
fuselage
きかんしゃ
locomotive
きどう
maneuver (usu. of military force)
きうん
opportunity
きしゅ
model (of machine, device)