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

thin on the ground • thin on top
thin on the ground —said of smth. not numerous and there-
fore hard to find: Pheasants are thin on the ground late
December and I don’t usually shoot them this late.
thin on top —said of smb. having little hair left on his head:
When I was at my twenties, I had good-looking hair, but now
I am quite a bit thin on top.
think again • think twice
think again —(also: have another think coming ) revise one’s
plans or opinions because they may be wrong: Those who
think that the trade union movement should take a back seat
in the Labor movement should think again.
think twice —use careful consideration; avoid hasty action
or conclusion: She had seen that he was in trouble and she
had given help without thinking twice.
See also: give it a second thought / have second thoughts.
think better of someone • think better of
 something
think better of someone —(also: think the better of someone)
form a higher opinion of a person: Surely no one could think
better of Jason for the quoted remarks?
think better of something —change one’s mind with regard
to smth.: Two years into his residency, Jadali thought better
of his decision to become an internist.
think much about something • think much of
something
think much about something —have the mind preoccupied
with smth.: No one had taught her this, but she was a woman
who thought much about God.
think much of something —
1
. = think much about something:
He thought much of the evils of the journey for her, and not
a little of the fatigues of his own horses. 2. (usually negat.)
regard smth. as important; value or esteem smth. highly: He
gives very good dinners, but I don’t think much of his cellar.