to obstruct, thwart, or hinder; to intentionally prevent something from proceeding smoothly

indomitable; to be firm and unyielding despite any difficulties or setbacks

To scratch one's head with one's hand, especially when feeling puzzled or frustrated.

(idiom) to keep fighting in spite of all setbacks; to be undaunted by repeated failures or difficulties; to have an unyielding spirit

The degree to which a structural element is displaced under a load, used in engineering and architecture; flexivity

to scratch with the fingers or claws; to mess about with something using the hands

To scratch one's ears and cheeks as a sign of being anxious, agitated, or at a loss for what to do

to scratch a spot that is itchy

to bend or flex; curving; deflection

flexibility; the physical property of being easily bent without breaking

a tool or weapon consisting of a large iron hook at the end of a long pole; gaff

a tool used to scratch one's back, typically made of bamboo or wood

to feel itchy or scratchy; to have an irritating sensation on the skin; also used to describe feeling restless or uncomfortable

to surrender, yield, or submit; to flex or bend

The degree of twisting or torsion, specifically of a space curve in mathematics.

literally meaning to stir boiling water with one's finger; to overestimate one's power to the point of certain failure or self-harm

to stick to the right path and remain firm in one's principles; to be strictly just and impartial

to disturb or interfere; interference or perturbation in a physics context

in a rush; frantically; hurriedly, or to grab at things chaotically when in a scramble (usually time-sensitive)

To grasp or clutch; to rummage through something or search for something; to make a little money.

to trouble; to disturb or harass

to destroy; to force someone or something to yield or break

to weed a rice field and loosen the soil around the roots of rice seedlings to help them grow

to split or crack due to repeated folding or bending

to be defeated, routed, or crushed