This is the 2013th most frequent German word.
knappe
"Squire" or "assistant," often referring to a mining assistant.
In this sentence, 'knappe' means 'concise', referring to the brief and to-the-point nature of the overview.
Der knappe Überblick über die Geschichte war sehr hilfreich.
The concise overview of the history was very helpful.
Here, 'knappe' indicates 'scarce', emphasizing the limited availability of the resource.
Die knappe Ressource Wasser muss geschützt werden.
The scarce resource, water, must be protected.
In this sentence, 'knappe' denotes 'narrow', describing the small margin of advantage in the lead.