名詞 forth:

1. a river in southern Scotland that flows eastward to the Firth of Forth
   同義詞：Forth River

副詞 forth:

1. from a particular thing or place or position (`forth' is obsolete)
   同義詞：away, off
2. forward in time or order or degree
   同義詞：forward, onward
3. out into view

1. The sun darts forth its beams.
   陽光四射。
2. One forth is a proper fraction.
   四分之一是一個真分?jǐn)?shù)。
3. His partial attitude called forth a lot of criticism.
   他的偏袒態(tài)度招致了不少批評。
4. That representative brought forth an amendment to the press law.
   那位代表提出了一項對新聞法的修正案。
5. His behavior called forth sharp criticism.
   他的行為招致尖銳的批評。
6. The Forth of July is the National Independence Day of the USA.
   七月四日是美國國慶日。
7. He went forth into the desert to pray.
   他向前走到沙漠中祈禱。

forth

adv.（副詞）
Forward in time, place, or order; onward:
向前，向前方：時間、地點或順序以后；向前的：
例句：
from this time forth.
從這時起

Out into view:
露著的，往外的：
例句：
A stranger came forth from the crowd; put my ideas forth.
從人群中走出一個陌生人；提出我的觀點

Obsolete Away from a specified place; abroad.
【廢語】 出外，離家：從一個特定的地點離開；到國外去
prep.Archaic （介詞）【古語】
Out of; forth from.
出自；從…離開

來源：
Middle English
中古英語
from Old English * see per
源自 古英語 *參見 per