This is the 931st most frequent Hebrew word.
עמוק
Deep.
Here, 'עמוק' (deep) describes the physical depth of the valley.
בית הספר ממוקם בעמק עמוק.
The school is located in a deep valley.
In this sentence, 'עמוק' (deep) metaphorically represents the complexity and thoughtful nature of the discussion.
הדיון היה עמוק ומשמעותי מאוד.
The discussion was deep and very meaningful.
In this instance, 'עמוקות' (deep, plural form) refers to the physical profundity or extent of the breaths taken.