To move or climb quickly but with difficulty, often using your hands to help you. (Cambridge Dictionary)
To compete with other people for something there is very little of. (Cambridge Dictionary)
If you scramble over rocks or up a hill, you move quickly over them or up it using your hands to help you. (Collins Dictionary)
If you scramble to a different place or position, you move there in a hurried, awkward way. (Collins Dictionary)
If a number of people scramble for something, they compete energetically with each other for it. (Collins Dictionary)
To move with urgency or panic. (Merriam – Webster)
To move or climb hastily especially on all fours. (Merriam – Webster)
Make one’s way quickly or awkwardly up a steep gradient or over rough ground by using one’s hands as well as one’s feet. (Oxford Dictionaries)
Scrambling Courses in The Lake District.
What Is Scrambling?