A dictionary of Confusable Phrases: More Than 10,000 Idioms and Collocations

make light of something • make light work of
something
make light of something —treat smth. as unimportant: My
parents made light of my worry and told me to take no notice
of what people said.
make light work of something —do smth. easily and without
much effort: You have worked hard all year, and should be
able to make light work of passing the examinations.
make much of something • not make much of
something
make much of something —regard smth. as important; value
smth. highly: We’ve always made much of our high literacy
rate, but somehow that hasn’t made us into a nation of read-
ers.
not make much of something —
1
. have a poor opinion of
smth.; treat smth. as unimportant: He has never made much
of his World War II experience. 2. fail to understand smth.:
I am not very fluent in Tamil anymore, so I couldn’t make
much of the book in Tamil.
make no bones about something • make one’s
bones
make no bones about something —be blunt and straightfor-
ward about smth.; speak about smth. openly: Lovecraft made
no bones about being a complete atheist.
make one’s bones —
1
. (Underworld) kill smb. as requirement
for membership in a criminal gang: Vito Corleone “made his
bones” (first killing) in cold blood for dollars. 2. (sl.) earn a
reputation; achieve success: John Daly eventually made his
bones, so to speak, as a reporter by covering World War II in
Europe.
make no mistake about it • there’s no mistake
about it
make no mistake about it—is used as a warning that the
statement is to be taken seriously: We shall insist on having
every penny that is due to us, make no mistake about it.
Note: 
The expression does not correlate in meaning with the
phrase and no mistake— without any doubt (used after a state-
ment to emphasize the idea implied): It’s boiling hot today, and
no mistake!
there’s no mistake about it—there is no doubt about it; it is
certain: There’s no mistake about it — this is quite simply the
best car on the market, sir!