# ponding

Pronunciation: say "POND-ing" US /ˈpɑndɪŋ/, UK /ˈpɒndɪŋ/

## Noun

1. The collection of water on a flat roof that fails to drain off, which can eventually cause leaks.
   - Simple: Water that collects and stays on a flat roof, where it can cause leaks.
   - _Poor drainage left ponding across half the building's roof for days._
   - _Repeated ponding had weakened the membrane until water seeped into the offices below._
2. The excessive buildup of water in low-lying areas that remains 48 hours after rain ends, even under conditions that would normally allow drying.
   - Simple: Water that builds up in low ground and stays for days, even when it should have dried.
   - _Engineers mapped areas of ponding across the floodplain after the monsoon._
   - _Persistent ponding in the lowlands delayed planting for several weeks._

## Verb

3. Present participle of pond. — present participle and gerund of pond
   - Simple: Present participle of pond. Use this -ing form when the action is happening now.
   - _Rainwater was ponding against the foundation, so they dug a drainage trench._
   - _Meltwater kept ponding on the trail, turning it to mud._

Source: DictionaryAI, https://dictionaryai.com/define/ponding (written from Wiktionary data, CC BY-SA 4.0: https://creativecommons.org/licenses/by-sa/4.0/).