Meaning : The district occupied entirely by the city of Washington. Chosen by George Washington as the site of the capital of the United States and created out of land ceded by Maryland and Virginia.
Synonyms : d.c., district of columbia
Meaning : An electric current that flows in one direction steadily.
Synonyms : direct current, direct electric current
An electric current that reverses direction sinusoidally.
In the US most household current is AC at 60 cycles per second.Dc meaning in Bengali (Bangla).