careless
careless mistake

correct
to correct a mistake

dearly
he paid dearly for his mistake

end
a mistake at your end

fatal
a fatal mistake

glaring
a glaring mistake

make
to make a mistake

mistake
...made the mistake of letting him know where you had been

observe
...making a mistake», she observed

rectification
rectification of a mistake

rectify
to rectify a mistake

repair
to repair a mistake

retrieve
to retrieve a mistake

sigh
to sigh over a mistake

spelling
spelling mistake

surely
there is surely some mistake

vocation
.../ to mistake one's vocation