Definition of spanners:
(n) :
(Commonwealth, UK, Ireland) A hand tool for adjusting nuts and bolts.
(n) :
(Canada, US) Any of certain types of such a tool that have a pin or hook to engage the driven object.
(n) :
(UK, Ireland) A problem, dilemma or obstacle; something unexpected or troublesome (in the phrase spanner in the works)
(n) :
(UK, Ireland, mildly derogatory) A stupid or unintelligent person; one prone to making mistakes, especially in language.
(v) :
To use a spanner; to fix with a spanner
(n) :
(weaponry) A hand tool shaped like a small crank handle, for winding the spring of a wheel lock on a musket.