None
None
None
replace
replace
A blade thing is an edged tool or cutlery.
The reading is the kun'yomi readings of the kanji. You learned 刃's reading with the kanji, and you probably remember 物 from so many other words.
刃物をちらつかせながら、男は低い声で私に「こっちへ来い」と言いました。
While brandishing his knife, he said to me in a low voice, "Get over here."
An update is needed before you can continue but you have more than one WaniKani tab open.
Finish up whatever you are doing on the other tab(s), then close them to continue.
The update will complete automatically once the other tab(s) are closed.