A jawed tool for gripping a pipe, in turning or holding it.
A hand tool shaped like a small crank handle, for winding the spring of a wheel lock on a musket.
One who, or that which, spans.
A problem, dilemma or obstacle; something unexpected or troublesome (in the phrase spanner in the works)
A hand tool for adjusting nuts and bolts; a wrench.
A stupid or unintelligent person; one prone to making mistakes, especially in language.
To use a spanner; to fix with a spanner