This is the 6039th most frequent German word.
combs
The German word "combs" does not exist; perhaps you mean the English word "combs" or another similar German word?
Here, 'Kämme' (combs) is used as a physical object, referring to hair grooming tools.
Ich habe drei Kämme in meiner Tasche.
I have three combs in my bag.
In this sentence, 'kämmen' is metaphorically used to describe how the waves touch the sand similar to combing.
Die Wellen des Meeres kämmen sanft den Strand.
The waves of the sea comb gently the beach.
Here, 'kämmt' is directly referring to the action of grooming hair using a comb.