1(added to verbs) in front.

1. 1.1 Beforehand; in advance.
   表示“早先”，“预先”
   forebode

   foreshadow

2(added to nouns) situated in front of.

1. 2.1 The front part of.
   表示“前部”
   forebrain
2. 2.2 Of or near the bow of a ship.
   表示“船首，近船首”
   forecastle
3. 2.3 Preceding; going before.
   表示“先前的”，“前述的”，“早先的”
   forefather