.fall short of (=fail to reach a desired result, standard, etc.)沒達到，低于
.familiar with熟悉，了解
.have a fancy for (=like sth. without the help of reason)(沒有道理地)喜歡，想要
.take a fancy to (=become fond of)喜歡
.by far遠，非常(與比較級或級連用)
.far from遠遠不是
.far from非但不……(而且)
.in fashion (=stylish，most modern) 時興，流行
.after the fashion (of)依照……
.find fault with (=complain about;criticize)找毛病，對……吹毛求疵
.at fault (=in the wrong, blamable)有錯
.in favour of贊成
.be in favour with受寵，受偏愛;
out of favour with失寵，不受寵
.in one’s favour (=to one’s advantage)對……有利
.(be) favourable to (=advantageous)有利的
.fear for (=be afraid for the safety of sb. or sth.)為……擔心
.for fear of (=in case of; because of anxiety about)以防，由于怕