ばんぜん
perfection; flawlessness
We're thoroughly prepared for the Y2K bug.
・ten thousand
・10,000
・whole
・entire
・all
・complete
・fulfill
ばんぜんのさく
safe plan;infallible measure
ばんぜんをきす
to make absolutely sure (that all is right);to use every means;to take all possible measures