Definitions
1.nounA coin that has been overstruck, i.e. coined more than once.
2.nounThe printing of one character over another, as - on top of L to produce Ł.
3.nounOvertype (feature where input replaces existing characters instead of being inserted before them)
4.verbTo overreach oneself while striking.
5.verbTo cover up (a design, mark etc.) by stamping another on top of it; to superimpose a mark or logo on (a coin, stamp, etc.).
6.verbTo strike (something) too hard.