from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A shower or fall of rain.
  • noun The quantity of water, expressed in inches, precipitated as rain, snow, hail, or sleet in a specified area and time interval.

from The Century Dictionary.

  • noun A falling of rain; a shower.
  • noun The precipitation of water from clouds; the water, or the amount of water, coming down as rain. The rainfall is measured by means of the pluviometer or rain-gage. The average rainfall of a district includes the snow, if any, reduced to its equivalent in water.

from the GNU version of the Collaborative International Dictionary of English.

  • noun A fall or descent of rain; the water, or amount of water, that falls in rain.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun meteorology the amount of rain that falls on a single occasion

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun water falling in drops from vapor condensed in the atmosphere


from Wiktionary, Creative Commons Attribution/Share-Alike License

rain +‎ fall


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