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To scale; to climb. Everyone else was able to climb up the rope in gym class, but I struggled, thanks to my scrawny arms. How long did it take them to climb up this mountain?
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
climb up (something)
to ascend something; to scale something. (Fixed order.) The hikers took two hours to climb up the hill. The adventurer tried to climb up the side of the cliff.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.