noun
depth
dehpth
noun
1
How far down something goes, from top to bottom or surface to floor.
"The pool has a depth of two metres at the deep end."
"Divers measured the depth of the trench at over ten kilometres."
2
The measure of how thorough, complex, or serious something is.
"The report goes into real depth on the causes of the crisis."
3
The most extreme or intense part of something, especially a difficult period.
"They fell in love in the depth of a harsh winter."
How to Use Depth
Learner’s notesIn plain EnglishHow deep something is, physically or in terms of thought and detail.
Common pairings
in depth
depth of field
depth of knowledge
water depth
Word Forms
depths plural
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The pool has a _____ of two metres at the deep end.
Etymology
From Old English deopnes-related forms, built on "deep" plus the abstract suffix "-th" — the same pattern as "width" from "wide".