climb /kla
m/ v. 1 [I;T] to move upward:
The airplane took off and climbed above (or)
climbed up above the clouds.||
Prices climbed higher on the stock exchange. 2 [I] to rise slowly and steadily in power, rank, etc.:
He climbed from selling newspapers on the street to owning several newspaper companies. 3 [I] to slant up:
The ground climbed steadily toward the mountains. 4 phrasal v. insep. [I;T]
to climb down: to go down, esp. using the hands and feet, descend:
The painter climbed down the ladder to the ground. 5 to climb out on a limb: to put oneself in a position where one can easily be criticized or harmed:
He climbed out on a limb when he told his boss that she could fire him if he did not make a sales increase. 
n. an upward movement on land or into the air, (
syn.) an ascent:
Our group made the climb up the mountain.Thesaurus: climb v. 1 to rise, go up, ascend
2 and 3 to ascend.
Ant. to descend.