• WordNet 3.6
    • v rain precipitate as rain "If it rains much more, we can expect some flooding"
    • n rain anything happening rapidly or in quick successive "a rain of bullets","a pelting of insults"
    • n rain water falling in drops from vapor condensed in the atmosphere
    • n rain drops of fresh water that fall as precipitation from clouds
    • ***

Additional illustrations & photos:

The friends' picnic is spoiled by the rain The friends' picnic is spoiled by the rain
Rain. Shoshoni, Apache Rain. Shoshoni, Apache
Rain. New Mexican pictograph Rain. New Mexican pictograph
Rain. Shoshoni Rain. Shoshoni
Rain, rain, go away Rain, rain, go away

Webster's Revised Unabridged Dictionary
  • Interesting fact: In the dry valleys region of Antarctica, it has not rained in 2 million years according to scientists
    • n. & v Rain rān Reign.
    • Rain To bestow in a profuse or abundant manner; as, to rain favors upon a person.
    • Rain To fall in drops from the clouds, as water; -- used mostly with it for a nominative; as, it rains . "The rain it raineth every day."
    • Rain To fall or drop like water from the clouds; as, tears rained from their eyes.
    • Rain To pour or shower down from above, like rain from the clouds. "Then said the Lord unto Moses, Behold, I will rain bread from heaven for you."
    • n Rain rān Water falling in drops from the clouds; the descent of water from the clouds in drops.Rain is distinguished from mist by the size of the drops, which are distinctly visible. When water falls in very small drops or particles, it is called mist; and fog is composed of particles so fine as to be not only individually indistinguishable, but to float or be suspended in the air. See Fog, and Mist. "Rain is water by the heat of the sun divided into very small parts ascending in the air, till, encountering the cold, it be condensed into clouds, and descends in drops.""Fair days have oft contracted wind and rain ."
    • ***
Century Dictionary and Cyclopedia
  • Interesting fact: Tropical rainforests cover about 7% of the Earth and receive over 80 inches of rain every year
    • n rain The descent of water in drops through the atmosphere, or the water thus falling. In general, clouds constitute the reservoir from which rain descends, but the fall of rain in very small quantities from a cloudless sky is occasionally observed. The aqueous vapor of the atmosphere, which condenses into cloud, and falls as rain, is derived from the evaporation of water, partly from land, but chiefly from the vast expanse of the ocean. At a given temperature, only a certain amount of aqueous vapor can be contained in a given volume, and when this amount is present the air is said to be saturated. If the air is then cooled below this temperature, a part of the vapor will be condensed into small drops, which, when suspended in the atmosphere, coustitute clonds. Under continued cooling and condensation, the number and size of the drops increase until they begin to descend by their own weight. The largest of these, falling fastest, unite with smaller ones that they overtake, and thus drops of rain are formed whose size depends on the thickness and density of the cloud and on the distribution of electrical stress therein. Sometimes the rate of condensation is so great that the water appears to fall in sheets rather than in drops, and then the storm is popularly called a cloud-burst. It is now generally held that dynamic cooling (that is, the cooling of air by expansion, when raised in altitude, and thereby brought under diminished pressure), if not the sole cause of rain, is the only cause of any importance, and that other causes popularly appealed to—such as the intermingling of warm and cold air, contact with cold mountain-slopes, etc.—are either inoperative or relatively insignificant. The requisite ascent of air may be occasioned either by convection currents, a cyclonic circulation, or the upward deflection of horizontal currents by hills or mountains; and rain may be classified as convectivc, cyclonic, or orographic, according as the first, second, or third of these methods is brought into operation to produce it. The productiveness of the soil and the maintenance of life in most parts of the earth depend largely upon an adequate fall of rain. In some regions it is more or less evenly distributed throughout the year, in others it is confined to a part of the year (the rainy season), and in others still it is entirely absent, or too slight for need, according to variation of local atmospheric conditions. In a ship's log-book abbreviated r.
    • n rain Figuratively— A fall of any substance through the atmosphere in the manner of rain, as of blossoms or of the pyrotechnic stars from rockets and other fireworks. Blood-rain is a fall of fragments of red algæ or the like, raised in large quantities by the wind and afterward precipitated. Sulphur-rain or yellow rain is a similar precipitation of the pollen of fir-trees, etc.
    • n rain A shower, downpour, or abundant outpouring of anything.
    • n rain Synonyms Rain, Haze, Fog, Mist, Cloud. A cloud resting upon the earth is called mist or fog. In mist the globules are very fine, but are separately distinguishable, and have a visible motion. In fog the particles are separately indistinguishable, and there is no perceptible motion. A dry fog is composed largely of dust-particles on which the condensed vapor is too slight to occasion any sense of moisture. Haze differs from fog and cloud in the greater microscopic minuteness of its particles. It is visible only as a want of transparency of the atmosphere, and in general exhibits neither form, boundary, nor locus. Thus, among haze, fog, mist, and rain, the size of the constituent particles or globules is a discriminating characteristic, though frequently cloud merges into fog or mist, and mist into rain, by insensible gradations.
    • rain To fall in drops through the air, as water: generally used impersonally.
    • rain To fall or drop like rain; as, tears rained from their eyes.
    • rain To pour or shower down, like rain from the clouds; pour or send down abundantly.
    • n rain A ridge.
    • n rain A furrow.
    • n rain An obsolete spelling of rein.
    • ***
Chambers's Twentieth Century Dictionary
  • Interesting fact: Rain falls at 11kmph (7mph)
    • n Rain rān water from the clouds in drops: a shower: a fall of any substance through the atmosphere in the manner of rain
    • v.i Rain to fall from the clouds: to drop like rain
    • v.t Rain to pour like rain
    • ***


  • Iris Murdoch
    “A bad review is even less important than whether it is raining in Patagonia.”
  • Edmund Waller
    Edmund Waller
    “Vexed sailors cursed the rain, for which poor shepherds prayed in vain.”
  • Henry Wadsworth Longfellow
    “Into each life some rain must fall, some days be dark and dreary.”
  • Henry Wadsworth Longfellow
    “Thy fate is the common fate of all; Into each life some rain must fall.”
  • Source Unknown
    Source Unknown
    “If love is shelter, I'm going to walk in the rain.”
  • J. Askenberg
    J. Askenberg
    “You win some, you lose some, and some get rained out, but you gotta suit up for them all.”


Come rain or shine - If I say I'll be at a place come rain or shine, I mean that I can be relied on to turn up; nothing, not even the vagaries of British weather, will deter me or stop me from being there.
Into each life some rain must fall - This means that bad or unfortunate things will happen to everyone at some time.
It never rains but it pours - 'It never rains but it pours' means that when things go wrong, they go very wrong.
Not know enough to come in out of the rain - Someone who doesn't know enough to come in out of the rain is particularly stupid.
Rain on your parade - If someone rains on your parade, they ruin your pleasure or your plans.
Raining cats and dogs - When it is raining cats and dogs, it is raining very heavily.
Right as rain - If things are right as rain, then everything is going well in your life.
When it rains, it pours - This idiom means that when things go wrong, a lot of things go wrong at the same time.


Webster's Revised Unabridged Dictionary
OE. rein, AS. regen,; akin to OFries. rein, D. & G. regen, OS. & OHG. regan, Icel., Dan., & Sw. regn, Goth. rign, and prob. to L. rigare, to water, to wet; cf. Gr. bre`chein to wet, to rain


In literature:

Storms of rain and snow.
"The Adventures of the Chevalier De La Salle and His Companions, in Their Explorations of the Prairies, Forests, Lakes, and Rivers, of the New World, and Their Interviews with the Savage Tribes, Two Hundred Years Ago" by John S. C. Abbott
The slope is so rapid that ordinary falls of rain run off with great rapidity.
"The Panjab, North-West Frontier Province, and Kashmir" by Sir James McCrone Douie
A good deal of rain with little wind.
"A Journey to America in 1834" by Robert Heywood
Paul, who had remained at the door, watching, announced an increase of rain and wind.
"The Eyes of the Woods" by Joseph A. Altsheler
The clouds were deepening, the rain could not be far off.
"Robert Elsmere" by Mrs. Humphry Ward
Meanwhile the darkness increased and the wind roared, but there was no rain.
"The Border Watch" by Joseph A. Altsheler
When it rained he took refuge in barns.
"The Goose Man" by Jacob Wassermann
As it had rain when there was rain nowhere else, so it had sun when there was sun nowhere else.
"Children's Literature" by Charles Madison Curry
It rained as it never does rain anywhere but here.
"The Life of Charles Dickens, Vol. I-III, Complete" by John Forster
The groan became a rumble, and then, as the vanguard of the wind, came great drops of rain that pattered like hail stones.
"The Riflemen of the Ohio" by Joseph A. Altsheler

In poetry:

A razor,
Rusted in a single night,--
The summer rains!
"A razor," by Nozawa Boncho
Let me be a rondeau
With a sweet refrain,
Or an aliquando
Sonnet to the rain;
"The Poem Speaks" by Franklin Pierce Adams
The wind and rain spake unto me,
"What is this thing God takes from thee?"
"Woman’s Portion" by Madison Julius Cawein
“O western wind, when wilt thou blow
That the small rain down can rain?
Christ! That my love were in my arms
And I in my bed again!”
"On Reading Ballads" by Arthur Graeme West
"If rain don’t come this month," said Dan,
And cleared his throat to speak –
"We’ll all be rooned," said Hanrahan, "
If rain don’t come this week."
"Said Hanrahan" by John O Brien
The Rain, the Rain, the beautiful Rain—
Welcome, welcome, it cometh again;
It cometh with green to gladden the plain,
And to wake the sweets in the winding lane.
"The Rain: A Song Of Peace" by Denis Florence MacCarthy

In news:

As the wind howled and rain slanted down amid Hurricane Sandy's fury, Magdelene was born at Meadowlands Medical Center.
Any rain that comes now will be too late to help the corn crop, but it might salvage soybeans, area farmers say.
"Into each life some rain must fall.".
A little rain is not gonna stop us from having a Friday afternoon party.
Rape and My Journey Back, by Nancy Venable Raine.
Rain Doesn't Stop Bear Paw Festival.
Rains beat back drought in Arkansas, foster soybean rust.
After a weekend of rain the dams open and the Connecticut River rages under the Vilas Bridge in Bellows Falls.
Belmont canceled its Friday card because of a forecast for heavy rain.
Doesn't it ever stop raining in sixth-century Daneland.
Remnants of Hurricane Miriam brought rain throughout the city and dampened the first night of events at the fiesta, on Sept 28.
While rain halted play on the courts outside Tuesday, Pat Summitt was inside an adjacent building receiving an ICON Award from the United States Tennis Association.
1994 Crooked Rain, Crooked Rain.
In 1994, Stephen Malkmus infamously made some funny comments about the Smashing Pumpkins and the Stone Temple Pilots during "Range Life," one of the many excellent songs on Pavement 's second album, Crooked Rain, Crooked Rain.
That record they would love to own (in fact, own many copies of) features both Carter and Chestnut performing music from Pavement 's Slanted and Enchanted, Crooked Rain, Crooked Rain, Brighten the Corners and Terror Twilight.

In science:

Rains, Eynard-Mehta theorem, Schur process, and their Pfaffian analogs, Jour.
Determinantal point processes
Marinacci et al. (2011) suggest a mechanism whereby a galactic fountain seeds metal-rich gas into the metal-poor hot haloes, giving rise to a thermal instability that causes cold gas to rain down onto the disc in the form of ∼ 105 M⊙ clouds (see also Fraternali & Binney, 2008).
Thermal instabilities in cooling galactic coronae: fuelling star formation in galactic discs
In fact, microwave detectors can operate 100% of the time, and attenuation in the GHz range is minimal, even with rain or clouds.
The MIDAS telescope for microwave detection of ultra-high energy cosmic rays
For instance, one might consider the amount of rain that falls at different places throughout an area rather than a single spot.
Critical points of a non-Gaussian random field
Upon adding together all the contributions of all rain clouds during the course of a year, one obtains a random field.
Critical points of a non-Gaussian random field