to go for a hike (especially in the hills or mountains)

to move forward along the ground on hands and knees or by dragging the body

to climb

to become seasoned or experienced through long-term practice in a profession or field

reptile or crawling insect

to rise or climb upwards, especially in reference to an aircraft or flying animal

to travel upwards along an inclined surface or road

to enter a place by crawling.

to be unfaithful to one's romantic partner or spouse

(idiom) stumbling and crawling; scrambling; frantically trying to escape

Boston ivy or Japanese creeper (Parthenocissus tricuspidata)

to climb mountains and wade rivers; to make a long and difficult journey

to write or spell out laboriously on squared manuscript paper

To work against the interests of someone who supports you, such as an employer or benefactor; to double-cross or bite the hand that feeds you.

doggy style sexual position

(swimming) the crawl (front crawl stroke)

incest between father-in-law and daughter-in-law

to cover a surface by growing or climbing over it.

to comb through (historical documents etc); to unravel

to move by climbing back and forth or in various directions on a surface such as a tree or wall

tick (zoology)

stumbling along

the activity or sport of climbing a vertical pole, often performed in gymnastics or circus acts

to climb up