Definition of "Climber" :

noun: an iron spike attached to the shoe to prevent slipping on ice when walking or climbing

noun: someone who climbs as a sport; especially someone who climbs mountains

"The lead climber looked strong still but his partner often slumped in his ropes."

noun: someone who ascends on foot

noun: someone seeking social prominence by obsequious behavior

noun: a vine or climbing plant that readily grows up a support or over other plants