fluid – noun anumang tumutulo gaya ng tubig; langis at iba pa
flunk
flunk – verb mahulog malaglag
flush
flush – verb ipagpag igalaw
flutter
flutter – verb kumampay ipagpag igalaw
fly
fly – noun langaw
flying
flying – adjective paglipad
flyleaf
flyleaf – noun blangkong pahina ng libro sa unahan o hulihan
foal
foal – noun batang kabayo
foam
foam noun bula verb bumula
focus
focus – noun atensiyon