411 REFERENCE · Wiktionary
Horizon Deep
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Proper noun
en deep trench/Tonga Trench ocean/Pacific Ocean; the second deepest place on Earth, and deepest part of the Tonga Trench.
Coordinate terms
en HMRG Deep
en Sirena Deep
en Challenger Deep
en Oceanography Places