Strong's #6683: tsuwlah (pronounced tsoo-law')
from an unused root meaning to sink: an abyss (of the sea):--deep.
Brown-Driver-Briggs Hebrew Lexicon:
ּ
tsûlâh
1) ocean-deep, deep, ocean depth
Part of Speech: noun feminine
Relation: from an unused root meaning to sink
Usage:
This word is used 1 times:
Isaiah 44:27: "That saith to the deep, Be dry, and I will dry up thy rivers:"