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In this title, the broadest possible definition of the term 'synonym' has been
adopted, as being the one that will be most useful to users. Even words whose
meaning is quite distantly related to that of the headword are listed if they can be
used to get the same message across in appropriate contexts. Synonyms are not
restricted to single words, and some expressions can be quite colourful: for
example, the synonyms for 
tinker
 include not only 
fiddle (with)
 and 
try to mend
, but
also 
rearrange the deckchairs on the Titanic
.
The synonyms in each entry are grouped together in synonym sets. Major synonym
sets correspond roughly to different senses of a word in a dictionary. Each major
synonym set is numbered, and many have more delicate subdivisions, which are
separated by semicolons. At the start of almost every synonym set is a 'core
synonym': the term which is closest in meaning to the headword in that particular
sense. Core synonyms are displayed in BOLD CAPITALS. Only a very few words
have no core synonym. Some synonym sets have more than one core synonym; for
example at 
avant-garde
 (adjective), both 
innovative
 and 
advanced
 are very close in
meaning to the headword, so both are given as core synonyms. Two different core
synonyms within the same sense group may emphasize slightly different aspects of
the meaning of the headword. For example, at 
dutiful
, the first core synonym given
is 
conscientious
, followed by a group of words closely related to this aspect of its
meaning. Then, after a semicolon, a second core synonym, 
obedient
, is given, with
a further group of synonyms grouped around that aspect of the meaning.
Synonyms whose usage is restricted in some way, for example regionalisms or very
formal or informal words, are placed at the end of each major synonym set and
labelled accordingly. See Register below.
fascinating source of encyclopedic information on subjects as diverse as
marsupials and military leaders.
Homonyms
Homonyms are words that are written the same but which have completely different
and unrelated meanings. For example, the 
bark
 of a dog is a completely different
word from the 
bark
 of a tree. There are three different words spelled 
bay
, and four
spelled 
sound
. Some words that are written with the same spelling are pronounced
differently. In such cases, a note on pronunciation is given, either by giving a word
that rhymes with the headword, e.g.
wind
1
 (rhymes with 'tinned')   noun
wind
2
 (rhymes with 'mind')   verb
or by stating where the stress falls, e.g.
defect
1
 (stress on first syllable)   noun
defect
2
 (stress on second syllable)   verb
Synonyms
It is sometimes argued that no two words have exactly the same meaning. Even
words as similar in meaning as 
close
 and 
shut
 may have slightly different nuances.
Closing
 a shop implies that the shop is no longer open for business, so no one can
come in. On the other hand, 
shutting
 a shop implies that the shop is being made
secure, so nothing can be taken out. A similar distinction is found between 
strong
and 
powerful
: 
powerful enemies
 may threaten from outside, but a 
strong defence
 on
the inside will deter them from attacking. However, these are unusually subtle
distinctions. For most practical purposes, 
close
 and 
shut
 have the same meaning,
as do 
strong
 and 
powerful
. Other synonyms are more distant, or emphasize
different aspects of the meaning. For example, another close synonym of strong is
muscular
, but it places much more emphasis on physical strength. By contrast,
stalwart
 and 
staunch
 are synonyms that emphasize more abstract aspects of this
meaning of 
strong
. 
Forceful
, 
secure
, 
durable
, 
loud
, 
intense
, 
bright
, and 
alcoholic
 are
other close synonyms of 
strong
, but all in quite different senses. They are not, of
course, synonyms of each other.