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abbrev. =abbreviation
adj. =adjective
adv. =adverb
AmE= American English
&=and
BrE= British English
cf. =（ Lat. ） confer
conj. =conjunction
derog. =derogatory
E=east，eastern
esp.=especially
etc.=（ Lat. ） et cetera ; and so on
fml =formal
Fr. =French
i.e. =（ Lat. ） id est ; that is to say
infml =informal
intro=introduction
L=Lesson
Lat. =Latin
n. =noun
N=north，northern
NE＝northeast，northeastern
neg. =negative
p =participle
P.=page
Par.=paragraph
pl. =plural
pop.=population
pp =past participle
pref. =prefix
prep. =preposition
pres.p. =present participle
pron. =pronoun
pt =past tense
S=south，southern
sb=somebody
SE=southeast，southeastern
sing. =singular
sl. =slang
sth=something
suf. =suffix
usu.=usually
v. =verb
W=west，western