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

subject for something • subject to something
subject for something —said of a person or thing to be dealt
with in some way: Mental illness is not a subject for ridicule
and at this time Frank deserves our sympathy.
subject to something —
1
. exposed to smth., usually damaging
or unpleasant: Any group viewed as a threat to the rule of the
Communist Party is subject to harsh treatment. 2. in a state
of dependence on smth.; submitted to principles, regulations,
etc.: He would no longer be subject to the caprice of any
woman. 3. conditional upon smth.: It will be milk from farms
where scrupulously clean methods are practiced — and itself a
product subject to bacteriological tests.
substantial improvement • substantive
 improvement
substantial improvement—considerable or significant im -
provement: Aerobic exercise can produce substantial improve-
ment in mood in patients with major depressive disorders in
a short time.
substantive improvement—improvement that is real or actual:
More than two years after the inter–Korean summit, substan-
tive improvement in the security situation on the Korean
peninsula remains elusive.
subway (UK) • subway (U.S.)
subway (UK)—a pedestrian walkway built underneath major
roads to enable to cross the road safely: Use the subway to
cross to the north side of Whitechapel High Street, continue
along and go left at Old Castle Street.
subway (U.S.)—the underground railway transport system,
usually in a large city: Allow enough time, even if traveling
by subway. There is always construction or unexpected long
stops.
succeed in something • succeed to something
succeed in something —accomplish what is attempted or
intended: The Dutch colonial rulers only partly succeeded in
their efforts to buy the land of the Pasir people.
succeed to something —inherit a title, position, etc. on the
death of a person: Prince George was 58 years old when he
succeeded to the throne on the death of his father.