A contortion of the body in an attempt to escape or to perform a difficult task.
Strife, contention, great effort.
To strive, to labour in difficulty, to fight (for or against), to contend.
To strive, or to make efforts, with a twisting, or with contortions of the body.
The act of pulling something along a surface using motive power.
The condition of being so pulled.
The extent of adoption of a new product or service, typically measured in number of customers or level of revenue achieved.
Popular support.
A mechanically applied sustained pull, especially to a limb.
Collectively, the locomotives of a railroad, especially electric locomotives.
The pulling power of an engine or animal.
Grip.
Scholarly interest and research.
The adhesive friction of a wheel etc on a surface.
To apply a sustained pull to (a limb, etc.).