"unfurled" is a correct and usable word in written English.
You can use it to describe something that has been opened or released from a state of being contained or rolled up, for example: The flag was unfurled to its full length.
In Oxfordshire, campaigners unfurled a banner reading "David Cameron in bed with the Big Six" outside the Conservative party office in Witney, where Cameron is MP.
Instead the flag will now be unfurled at the council's headquarters on 17 designated days.
On August 4 1997, Rangers unfurled another championship flag, kicking off what they hoped would be the club's 10th - and Smith's seventh - consecutive Scottish league title.
The following year they were further incited during a qualifier for Italia 90 in Rotterdam, when Dutch fans unfurled a giant banner comparing the German captain, Lothar Matthäus, to Adolf Hitler.
This came to public attention, and the courts, when in 2008, during a match against the big northern team Lens, the supporters of Paris Saint-Germain unfurled a banner that read: Pédophiles, chômeurs, consanguins: bienvenue chez les Ch'tis (Paedophiles, unemployed, inbreds: meet the Northerners).
The fans who had unfurled the banner were eventually fined for causing offence, although their lawyer argued that "they had the right to bad taste".
On Saturday, a huge banner was unfurled.
At the site of an old gallows, eight protesters unfurled scrappy banners in Czech and Russian.
Halfway through her presentation she unfurled a copy of this week's issue and waved it around in front of the audience.
Secondary-school pupils unfurled a banner outside parliament reading "USSR forever".
How about a laptop-sized screen that unfurled from your mobile phone so you could watch TV while strap-hanging to work?
