Far 和 a long way 都可用來表示距離遠的。例如：
- A lot of people can’t see very far without their glasses on. (許多人沒戴眼鏡就不能看得很遠)
- Taiwan is a long way from Canada. (台灣與加拿大距離遙遠)
Far 大多用在否定句和疑問句。例如：
- There’s a Korean restaurant not far from here. (離這裡不遠處有一家韓式餐廳)
- How far is her house from the airport? (她家離機場多遠？)
A long way 大多用在肯定句，但亦可用在否定句和疑問句。例如：
- It’s a long way to Taipei from here. (這裡離台北很遠)
- A: How long will it take you to drive to the airport from your house? (A：從你家開車到機場要多久的時間？)
B: About three hours. (大約三小時)
A: That’s a long time, isn’t it? (A：時間很長，不是嗎？)
B: Yeah. It’s a long way. (B：沒錯。路途遙遠) (正)
B: Yeah. It’s far. (誤) - A: I have to go to Randy’s dormitory first to pick him up. (我必須先到藍迪的宿舍去接他)
B: Is it a long way from here? (離這裡很遠嗎？)
A: No, it’s not far. (不，不遠) (正)
不過，當 far 與 as, so, too (far 位在後面) 和 enough (far 位在前面) 連用時，則可用在肯定句。這些片語既可指距離，亦可指時間。例如：
- The old woman had got as far as the riverside before the rescuers found her. (在救援人員找到該名老婦人之前，她已經走到河邊)
- There have been 20 deaths in the train crash so far. (截至目前已有 20 人死於這起火車撞車事故)
- Six months is too far ahead. The restaurant only takes bookings for up to three months in advance. (提前六個月預定太早了。那家餐廳最多只接受提前三個月預定)
- His house is far enough away from his downtown office. (他的住家離他的市區辦公室夠遠)
Far 亦可用來修飾比較級，意為「非常；很多」。例如：
- The President is far more interested in the vote. (總統對選票更感興趣得多)
- The roads in Taiwan are far better than in the Philippines. (台灣的道路比菲律賓好得多)
形容詞最高級的前面可用 by far 來加強語氣。例如：
- The restaurant is by far the most expensive in Taipei. (這家餐廳是台北最貴的)
- This is by far the quickest way. (這是最快捷的路徑)
在由 a long way 所構成的片語中，have come a long way 和 have a long way to go 用得頗為頻繁，前者意為「大為進步；獲得重大的成就」，後者意為「還有很長的路要走；(在成功之前) 還要多多努力」。此外，be a long way off (後接名詞或動名詞) 亦相當常用，意為「(離某時間) 還早」。例如：
- The development of weapon technology has come a long way since World War II. (自第二次世界大戰以來，武器科技的發展已有長足的進步)
- We’ve recruited 10 professionals so far, but we still have a long way to go. (我們迄今已招聘 10 位專業人才，但還需招聘更多的專業人才)
- I’m a long way off retiring. (我離退休還早)