Abbreviation is a conventional feature of written language that consists of representing in a reduced form certain words or expressions. The general rule for abbreviating words is simple. Just write the first syllable and the first letter of the second syllable, followed by an abbreviation dot. See the examples:
bras (Brazilian)
no. (numeral)
Comments:
pers. (person)
build. (construction)
sec. (secretary)
dis. (disyllable)
century (century)
decree-law (decree-law)
adm.-financ. (financial administration)
beautiful (bachelor
) (Colonel)
co. (company)
Dr. (doctor)
Brother. (Illustrious)
Ltd. (limited)
BC or BC (before Christ)
ap., apart. or apt (apartment)
btl. (battalion)
ex. (box)
D. (dignified, Dom, Dona)
f. or page or fol. (sheet)
id. (idem)
ie (ie)
p. or page (page)
pg. (paid)
p. or pages (pages)
PS (postscript)
HQ (headquarters)
SA (Society Anonymous)
SOS (Save Our Soul)
ui (internal use)
USA (United States of America = United States)