Worknights.com was continuously registered since November 10th, 1999 until it expired this year and I won it in the drop auctions. It caught my eye because it could have multiple uses, both as a dictionary word and as a call to action.
Worknights (noun) - Lifestyle
The domain could be used as a lifestyle site/app for working professionals; a hugely valuable demographic. It could include recipes that are easy to make after a long day of work, ideas for relaxing or having fun, happy hour events, etc.
Help people take back their worknights and make it more than Commute >> Eat >> Watch TV >> Sleep. Monetize through AdSense, affiliate programs for daily deals, or direct ad sales.
Work Nights - Call to Action for Jobs
This would be a great call to action for a job board that focuses on "second jobs" for people to earn extra cash. You could charge businesses to list job openings, charge users a membership fee to submit applications, or even monetize both sides.
There are tons of jobs in this sector including servers, security, pizza delivery, casinos, stock clerks, convenience stores, movie theaters, drivers, and the list goes on. Maybe Uber or Lyft would pay to advertise as well.
Close Comparable Sales
Weekday.com sold for $18,450 in 2010 at Sedo. (developed)
Weekdays.com sold for $8,100 in 2015 at NameJet. (wholesale)
Fortnight.com sold for $39,500 in 2013 at Uniregistry.
Recent Plural Dictionary Sales
Facets.com sold for $8,088 on 4/19/2017 at NameJet.
Lineups.com sold for $6,000 on 4/19/2017 at Flippa.
Vents.com sold for $5,500 on 4/10/2017 at GoDaddy.
Specifics.com sold for $5,150 on 4/9/2017 at GoDaddy.
Afterwords.com sold for $4,605 on 4/2/2017 at GoDaddy.
Other Comparable Sales Related to Working
WorkApp.com sold for $20,000 in 2016 at Sedo.
WeWork.com sold for $20,000 in 2010 at Sedo.
DreamWork.com sold for $18,000 in 2013 at DomainHoldings.
DirtyWork.com sold for $12,500 in 2011 at GoDaddy.
LetsWork.com sold for $10,450 in 2007 at Moniker.
You can see dictionary words are highly liquid and sell frequently in the mid $x,xxx range or higher on the wholesale market! So not only is this a great development opportunity, it is a solid all-around investment even if you just hold onto it.
Escrow.com or Flippa escrow required. The domain is being transferred to GoDaddy so it will be in 60-day lock and a push (account change) will be the only available method of transfer to the winning bidder. You can always transfer it to your registrar of choice later.
Thanks for looking and good luck!