Definition of "cloud"

So this was my future home, I thought! […] Backed by towering hills, the but faintly discernible purple line of the French boundary off to the southwest, a sky of palest Gobelin flecked with fat, fleecy little clouds, it in truth looked a dear little city; the city of one's dreams.

1908, W[illiam] B[lair] M[orton] Ferguson, chapter IV, in Zollenstein, New York, N.Y.: D. Appleton & Company

Since the mid-1980s, when Indonesia first began to clear its bountiful forests on an industrial scale in favour of lucrative palm-oil plantations, “haze” has become an almost annual occurrence in South-East Asia. The cheapest way to clear logged woodland is to burn it, producing an acrid cloud of foul white smoke that, carried by the wind, can cover hundreds, or even thousands, of square miles.

2013 June 29, “Unspontaneous combustion”, in The Economist, volume 407, number 8842, page 29

so great a cloud of witnesses

1611, The Holy Bible, […] (King James Version), London: […] Robert Barker, […], Hebrews 12:1

The place was horribly haunted by clouds of mosquitoes and every form of flying pest, so we were glad to find solid ground again and to make a circuit among the trees, which enabled us to outflank this pestilent morass, which droned like an organ in the distance, so loud was it with insect life.

1912, Arthur Conan Doyle, The Lost World […], London, New York, N.Y.: Hodder and Stoughton

Now we are liberal with our innermost secrets, spraying them into the public ether with a generosity our forebears could not have imagined. Where we once sent love letters in a sealed envelope, or stuck photographs of our children in a family album, now such private material is despatched to servers and clouds operated by people we don't know and will never meet.

2013 June 14, Jonathan Freedland, “Obama's once hip brand is now tainted”, in The Guardian Weekly, volume 189, number 1, page 18

But when he found that some of his interrogatories were evaded, and others answered undecisively, the look of gentleness which he had assumed, vanished, and his brow wore the cloud of disappointment and of anger.

1798, Eleanor Sleath, The Orphan of the Rhine

The only cloud on their night was that injury to Rafael, who was followed off the pitch by his anxious brother Fabio as he was stretchered away down the tunnel.

2011 January 25, Phil McNulty, “Blackpool 2-3 Man Utd”, in BBC

The horses stampingTheir warm breath cloudingIn the sharp and frosty morningOf the day.

1972, “Thick As A Brick”, Ian Anderson (lyrics), performed by Jethro Tull

One day too late, I fear me, noble lord, Hath clouded all thy happy days on earth.

1595 December 9 (first known performance), William Shakespeare, “The life and death of King Richard the Second”, in Mr. William Shakespeares Comedies, Histories, & Tragedies: Published According to the True Originall Copies (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, [Act III, scene ii]

Be not disheartened, then, nor cloud those looks.

1667, John Milton, “Book V”, in Paradise Lost. […], London: […] [Samuel Simmons], […]; republished as Paradise Lost in Ten Books: […], London: Basil Montagu Pickering […], 1873,

I would not be a stander-by to hear My sovereign mistress clouded so, without My present vengeance taken.

c. 1610–1611 (date written), William Shakespeare, “The Winters Tale”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, [Act I, scene ii]

The nice conduct of a clouded cane

1714, Alexander Pope, “The Rape of the Lock”, in The Works of Mr. Alexander Pope, volume I, London: […] W[illiam] Bowyer, for Bernard Lintot, […], published 1717, canto IV