The Oxford Thesaurus An A-Z Dictionary of Synonyms INTRO ...

encountered in ordinary, everyday English, like
defalcator, which appears as a synonym under swindler.
Literary Describes a word, like euchre 'cheat', that is not
usually met with in everyday language, even of the
formal genre, but may be found in poetry and other
literary works.
Brit, US, Australian, Canadian, New Zealand
Marks a word or phrase that occurs mainly in the
designated variety.
The meanings of other labels are self-evident.
b. All labels can occur in combination. Usage labels always take
precedence over regional labels. For example,
pushover n. 1 sure thing, Colloq piece of cake, child's
play, snap, picnic, walk-over, US breeze, Slang cinch,
Brit doddle, US lead-pipe cinch.
Here 'sure thing' is standard universal English. All words and
phrases following Colloq up to the Slang label are colloquial:
'piece of cake,...walkover' are universal colloquial English,
'breeze' is US colloquial. All synonyms following the Slang label
are slang; 'cinch' is universal English slang, 'doddle' is
confined to British slang, and 'lead-pipe cinch' is confined to
American slang.
talented adj....Colloq ace, crack, top-notch, Brit wizard,
whizzo, US crackerjack.
In this entry, all synonyms shown are colloquial, 'ace, crack,
topnotch' being universal English, 'wizard, whizzo' British, and
'crackerjack' US.
It must be emphasized that such labels are to some extent
impressionistic and are based in the Thesaurus on a consensus of
several sources: that is, there is no implication that 'breeze' is
never used in the sense of 'pushover' except in the US, nor should
such an inference be made.
c. Comments regarding what might be viewed as 'correct' in contrast