It’s taken over 5 years, but Twitter is finally the trademark holder of the word “tweet”. The company settled a lawsuit against a Twitter-based advertising company this week, which will transfer the copyright of the word “tweet” to Twitter.

As reported in the Wall Street Journal, Twitter and Twittad – the advertising company which had previously trademarked “tweet” through its tag line “Let your ad meet tweets” – came to an agreement on Monday.

Twittad’s CEO James Eliason explained that Twitter had agreed to drop the lawsuit against his company in exchange for Twittad transferring its registered trademark of the word “tweet” to Twitter.

Part of the terms of the deal will ensure that, despite Twitter now owning trademark of “tweet”, Twittad may continue to use its tagline, and will see its Twitter account reinstated after Twitter had shut it down during the legal battle.

A Twitter spokesperson, Lynn Fox, has this to say about the agreement:

“We’ve arrived at a resolution with Twittad that recognizes consistent use of Tweet while supporting the continued success of Twitter ecosystem partners like Twittad.”

Both companies have declined to disclose the precise terms of the agreement, citing a confidentiality agreement.

This follows a legal battle between the two companies which we reported last month. It also follows closely on the heels of another legal battle that Twitter is fighting, the company itself being sued over a patent dispute.