0 the distance down either from the top of something to the bottom, or to a distance below the top surface of something: --
1 the state of having serious qualities or the ability to think seriously about something: --
Terry lacks depth - he's a very superficial person.
Her writing shows astonishing depth.
Jo has hidden depths (= serious qualities that you do not see immediately).
3 the fact of a feeling, state, or characteristic being strong, extreme, or detailed: --
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
We kunnen het stap voor stap voltooien, hoe lang de weg ook is en het kan niet worden voltooid, hoe kort de weg ook is, als je niet eens je voetafdruk markeert.