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soakaway

British  
/ ˈsəʊkəˌweɪ /

noun

  1. a pit filled with rubble, etc, into which rain or waste water drains

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

And under their rear garden is a soakaway: essentially a big tank constructed of crates that collects excess rainwater and gradually drains it into the subsoil.

From BBC • Jul. 22, 2021

Every now and then some one stumbles into a soakaway for rainwater or swears at a soft place, or somebody blunders into the man in front of him.

From Mr. Britling Sees It Through by Wells, H. G. (Herbert George)