Noun

(en noun)

(label) In a clause: the word or word group (usually a noun phrase) that is dealt with. In active clauses with verbs denoting an action, the subject and the actor are usually the same.

The main topic of a paper, work of art, discussion, field of study, etc.

* (John Milton) (1608-1674)

the subject for heroic song

* (John Dryden) (1631-1700)

Make choice of a subject , beautiful and noble, which shall afford an ample field of matter wherein to expatiate.

* (William Shakespeare) (1564-1616)

the unhappy subject of these quarrels

* {{quote-book, year=1905, author=

, title= , chapter=5 citation , passage=Then I had a good think on the subject of the hocussing of Cigarette, and I was reluctantly bound to admit that once again the man in the corner had found the only possible solution to the mystery.}}

*{{quote-book, year=1922, author=(Ben Travers)

, chapter=5, title= A Cuckoo in the Nest , passage=The departure was not unduly prolonged.

A particular area of study.

*{{quote-magazine, date=2014-06-14, volume=411, issue=8891, magazine=(The Economist)

, title= It's a gas , passage=One of the hidden glories of Victorian engineering is proper drains.

A citizen in a monarchy.

A person ruled over by another, especially a monarch or state authority.

(label) The main theme or melody, especially in a fugue.

* (1823-1895)

The earliest known form of subject is the ecclesiastical cantus firmus , or plain song.

A human, animal or an inanimate object that is being examined, treated, analysed, etc.

* (Conyers Middleton) (1683-1750)

Writers of particular livesare apt to be prejudiced in favour of their subject .

* {{quote-magazine, year=2013, month=July-August, author= Catherine Clabby

, magazine=(American Scientist), title= Focus on Everything , passage=Not long ago, it was difficult to produce photographs of tiny creatures with every part in focus. That’s because the lenses that are excellent at magnifying tiny subjects produce a narrow depth of field.}}

Noun

(en noun)

The person, place or thing from which something (information, goods, etc.) comes or is acquired.

* {{quote-book, year=2006, author=(Edwin Black)

, title=Internal Combustion, chapter=2 citation , passage=More than a mere source of Promethean sustenance to thwart the cold and cook one's meat, wood was quite simply mankind's first industrial and manufacturing fuel.}}

* {{quote-magazine, date=2013-07-06, volume=408, issue=8843, page=68, magazine=(The Economist)

, title= The rise of smart beta , passage=Investors face a quandary. Cash offers a return of virtually zero in many developed countries; government-bond yields may have risen in recent weeks but they are still unattractive. Equities have suffered two big bear markets since 2000 and are wobbling again. It is hardly surprising that pension funds, insurers and endowments are searching for new sources of return.}}

Spring; fountainhead; wellhead; any collection of water on or under the surface of the ground in which a stream originates.

* {{quote-magazine, date=2013-08-16, author= John Vidal

, volume=189, issue=10, page=8, magazine=(The Guardian Weekly) , title= Dams endanger ecology of Himalayas , passage=Most of the Himalayan rivers have been relatively untouched by dams near their sources . Now the two great Asian powers, India and China, are rushing to harness them as they cut through some of the world's deepest valleys.}}

A reporter's informant.

(computing) Source code.

(electronics) The name of one terminal of a field effect transistor (FET).