chief, principal, main, major, leading, capital, foremost, primary

名詞 major:

1. a commissioned military officer in the United States Army or Air Force or Marines; below lieutenant colonel and above captain
2. British statesman who was prime minister from 1990 until 1997 (born in 1943)
   同義詞：John Major, John R. Major, John Roy Major
3. a university student who is studying a particular field as the principal subject
4. the principal field of study of a student at a university

動(dòng)詞 major:

1. have as one's principal field of study

形容詞 major:

1. of greater importance or stature or rank
2. greater in scope or effect
3. greater in number or size or amount
4. of the field of academic study in which one concentrates or specializes
5. of a scale or mode
6. of greater seriousness or danger
7. of full legal age
8. of the elder of two boys with the same family name

1. This quartet represents a major new trend in modern music.
   這首四重奏的曲子反映了現(xiàn)代音樂中一種主要的新趨向。
2. Her major is French.
   她的主修科目是法語(yǔ)。
3. She majored in maths and physics at university.
   她在大學(xué)期間主修數(shù)學(xué)和物理。
4. My major is French.
   我的主修科目是法語(yǔ)。
5. The play was a major success.
   這出戲大獲成功。
6. We have encountered major problems.
   我們已遇到重大的問題。

ma.jor

adj.（形容詞）
Greater than others in importance or rank:
主要的，較重要的：在重要性或地位方面超過其他人的：
例句：
a major artist.
主要的藝術(shù)家

Great in scope or effect:
卓越的，顯著的：在范圍或效果上重大的：
例句：
a major improvement.
卓越的進(jìn)步

Great in number, size, or extent:
多的，大的：數(shù)目、尺寸或程度上很大的：
例句：
the major portion of the population.
大部分的人口

Requiring great attention or concern; very serious:
嚴(yán)重的：需要很大的關(guān)心和注意的；非常嚴(yán)重的：
例句：
a major illness.
重病

Law Having attained full legal age.
【法律】 成年的：達(dá)到法定年齡的
Of or relating to the field of academic study in which a student specializes.
主修的，專攻的：和一個(gè)學(xué)生專門研究的學(xué)術(shù)領(lǐng)域有關(guān)的
Music
【音樂】
Designating a scale or mode having half steps between the third and fourth and the seventh and eighth degrees.
長(zhǎng)音階的：表示在第三和第四以及第七和第八度之間產(chǎn)有半拍的音階或調(diào)式的
Equivalent to the distance between the tonic note and the second or third or sixth or seventh degrees of a major scale or mode:
長(zhǎng)調(diào)的：相當(dāng)于主音音符與大調(diào)的第二或第三或第六和第七度之間的距離的：
例句：
a major interval.
長(zhǎng)音程

Based on a major scale:
基于大調(diào)之上的：
例句：
major key.
大調(diào)

n.（名詞）
Abbr. Maj.
縮寫 Maj.
A comissioned rank in the U.S. Army, Air Force, or Marine Corps that is above captain and below lieutenant colonel.
少校官階：美國(guó)陸軍、空軍或海軍在上尉之上而在中校之下的軍銜
A similar rank in another military or paramilitary organization.
同少校官階者：在其他軍事或者準(zhǔn)軍事組織中的相同軍銜
One who holds this rank.
少校：擁有這個(gè)軍銜的人
One that is superior in rank, importance, or ability:
舉足輕重者：在地位、重要性和能力方面很高的人或事物：
例句：
an oil-producing country considered as one of the majors.
產(chǎn)油國(guó)被認(rèn)為是世界上的重要國(guó)家之一

Law One who has reached full legal age.
【法律】 成年人：達(dá)到法定年齡的人

A field of study chosen as an academic specialty.
專業(yè)，主修課：選作學(xué)術(shù)專業(yè)的一個(gè)研究領(lǐng)域
A student specializing in such studies:
主修生：專修這樣專業(yè)的學(xué)生：
例句：
a linguistics major.
專修語(yǔ)言學(xué)的學(xué)生

Logic
【邏輯學(xué)】
A major premise.
大前提
A major term.
大項(xiàng)目
Music A major scale, key, interval, or mode.
【音樂】 大調(diào)音階、調(diào)、音程或調(diào)式
majors Sports The major leagues.
majors 【體育運(yùn)動(dòng)】 美國(guó)職棒聯(lián)盟
v.intr.（不及物動(dòng)詞）
ma.jored,ma.jor.ing,ma.jors
To pursue academic studies in a major:
主修：在一個(gè)專業(yè)里進(jìn)行學(xué)術(shù)研究：
例句：
majoring in mathematics.
主修數(shù)學(xué)

來源：
Middle English majour
中古英語(yǔ) majour
from Latin m3ior * see meg-
源自 拉丁語(yǔ) m3ior *參見 meg-