Synonyms of 'clamber'
to climb awkwardly, using hands and feetThey clambered up the steep hill.
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in the sense of claw
to scrape, tear, or dig with claws or nails
She struck back at him and clawed his arm with her hand.
in the sense of scrabble
to scrape at or grope for something with hands, feet, or claws
I hung there, scrabbling with my feet to find a foothold.
Thesaurus for clamber from the Collins English Thesaurus