1) Boomer 2) Loudsound 3) Peal 1) Loud sound from a gray sky 2) Loud sound from a storm 3) Marvel Comic superhero 4) Noise from on high 5) Oklahoma City fan sound 6) Sound from the sky 7) Summer storm sound 8) Thunder 9) Two sounds in one 
[website] Thunderclap is a `crowdspeaking` platform that lets individuals and companies rally people together to spread a message. The site uses an `all-or-nothing` model similar to crowdfunding sites such Kickstarter, in that if the campaign does not meet its desired number of supporters in the given time frame, the organizer receives none...
• (n.) A sharp burst of thunder; a sudden report of a discharge of atmospheric electricity.
Thun'der·clap` noun A sharp burst of thunder; a sudden report of a discharge of atmospheric electricity. ' Thunderclaps that make them quake.' Spenser. « When suddenly the thunderclap was heard.» Dryden. 
[n] - a single sharp crash of thunder
Operational code name for the Allied bombing of Dresden - February 1945 
noun a single sharp crash of thunder
refers to a website of the same name used to synchronize social media posts about a cause or campaign. An ongoing campaign there claims that supporters of Gamergate are the ones who have been harassed, not the women written about in the media, though as I noted in my explanation yesterday, the movement only started because of the publication of a r...