Dictionary.com

Mariana Trench

[ mair-ee-ah-nuh-trench, mar- ]
/ ˈmɛər iˌɑ nə ˈtrɛntʃ, ˈmær- /
Save This Word!

noun
the world’s deepest oceanic trench, a crescent-shaped depression located in the western Pacific Ocean, south and west of the Mariana Islands: site of the Challenger Deep.
QUIZ
WILL YOU SAIL OR STUMBLE ON THESE GRAMMAR QUESTIONS?
Smoothly step over to these common grammar mistakes that trip many people up. Good luck!
Question 1 of 7
Fill in the blank: I can’t figure out _____ gave me this gift.
Also called Mar·i·an·as Trench [mair-ee-ah-nuhz trench, mar-] /ˈmɛər iˌɑ nəz ˈtrɛntʃ, ˈmær-/ .

Origin of Mariana Trench

First recorded in 1930–35; named after the Mariana Islands
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use Mariana Trench in a sentence

FEEDBACK