The word “tweet” is to become a registered trademark of the micro-blogging website Twitter, company executives have said. They said Twitter had resolved a long-running legal dispute over ownership of the term by US advertising company Twittad which allows a network of 27,000 Twitter users to be paid to tweet advertisements from their private accounts. “We’ve arrived at a resolution with Twittad that recognises consistent use of Tweet while supporting the continued success of Twitter ecosystem partners like Twittad,” an English website quoted Twitter spokeswoman Lynn Fox as saying.