Real Dictionary

sic
You write sic in brackets after a word or expression when you want to indicate to the reader that although the word looks odd or wrong, you intended to write it like that or the original writer wrote it like that.

SIC in American English
abbreviation: Standard Industrial Classification: a system used by the federal government to classify business activities for analytical and reporting purposes

sic in American English 1
such
transitive verb: to attack (used esp. in commanding a dog)

sic in American English 2
to set upon; pursue and attack
adjective: such

sic in American English 3
thus; so

sic in British English 1
adverb: so or thus: inserted in brackets in a written or printed text to indicate that an odd or questionable reading is what was actually written or printed

sic in British English 2
verb: to turn on or attack: used only in commands, as to a dog

Sic. in American English
abbreviation: Sicilian