rain-fall

rain·fall (rān′fôl′)

n.

1. A shower or fall of rain.

2. The quantity of water, expressed in inches, precipitated as rain, snow, hail, or sleet in a specified area and time interval.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

rainfall (ˈreɪnˌfɔːl)

n

1. (Physical Geography) precipitation in the form of raindrops

2. (Physical Geography) meteorol the amount of precipitation in a specified place and time