for是經(jīng)常用到的一個單詞，可以搭配很多的單詞使用，用法也多種多樣。那么下面我們就來說說for是什么意思。

簡要回答

for是個英語單詞，作為介詞意思是為了、對于，作為連詞意思為因為。

詳細(xì)內(nèi)容

for
英 [f??(r) , f?(r)] 美 [f??r , f?r]
prep.(表示對象、用途等)給，對，供;以幫助;為了;關(guān)于
conj.因為;由于

用法實例
for，作為介詞，意思是：為了、對于。
My father would do anything for me and my mother,because he loves his family.我的父親會為我和我的母親做一切，因為他愛他的家庭。
for，作為連詞，意思為：因為。
用for替換了because，則例句變?yōu)镸y father would do anything for me and my mother,for he loves his family.
I didn't eat much lunch for I'm not hungry at all.
我沒有怎么吃午餐，因為我一點也不餓。

because conj. 因為
語氣最強，表示因果關(guān)系，通常用來回答由 why 引導(dǎo)的疑問句。由 because 引導(dǎo)的分句置于句首時，須用逗號與主句隔開，置于句末時則不用隔開。
Because the traffic is so busy, she failed to arrive at the station on time.
因為路上交通太擁擠，她沒能準(zhǔn)時趕到車站。
He came back late because there was something wrong with his car.
他回來晚了，因為汽車出了故障。
as conj. 因為，由于
如果所述理由是明顯的或者已知的，則用 as 較 because 更為合適。
As it's raining, you'd better stay at home.
既然在下雨，你最好呆在家里。
He puts the ice cream into the fridge immediately, as it melts easily.
他馬上把冰激凌放進(jìn)冰箱，因為它很容易化掉。
for conj. [正式]因為
for 屬于并列連詞，由它引導(dǎo)的分句表示補充說明性的理由，通常只能置于句末，且必須用逗號與前面的分句隔開。
He must have passed this way, for here are his footprints.
他肯定是從這條路走過去的，這里有他的腳印。
He has to work hard, for he wants to support his family.
因為要養(yǎng)家糊口，他必須努力工作。
since conj. 因為，既然
當(dāng)所述原因是已知的客觀事實或被當(dāng)作推斷的理由時用 since，語氣略強于 as。
Since he is absent, let's begin.
既然他不在，我們就開始吧。
Susan must have come back home, since her coat is not in the wardrobe.
蘇珊肯定回過家，因為她掛在衣櫥里的外套不見了。