Intention.us -- Intention
As of August 28, 2015, one live official trademark (spirits and liqueurs) was found on USPTO.gov for the exact term
There is one live trademark (textiles with inspirational messages) on Intentions.
(We do NOT own Intentions.us)
However, both Intention and Intentions are generic words; these terms cannot be trademarked for their dictionary or descriptive meanings.
Please consult with a trademark attorney or expert for information on how this term may be used in commerce.