Noun
focus foci, {Phys.}
بؤرة [ج. بُؤَر] ، {فزياء}
aperture [pl. apertures]
center [pl. centers] , {Places}
seat {Phil.}
بُؤْرَة {فلسفة}
seminary [pl. seminaries] , {Phys.}
بؤرة {فزياء}
abutment {Arch.}
بؤرة {هندسة}
pivot {mechanical engineering}