We don't have synonyms for canoo yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are canon, canoe and canto.
(n) :
Obsolete form of canoe. [(nautical) A small long and narrow boat, propelled by one or more people (depending on the size of canoe), using single-bladed paddles. The paddlers face in the direction of travel, in either a seated position, or kneeling on the bottom of the boat. Canoes are open on top, and pointed at both ends.]
(n) :
Obsolete form of canoe. [(nautical) A small long and narrow boat, propelled by one or more people (depending on the size of canoe), using single-bladed paddles. The paddlers face in the direction of travel, in either a seated position, or kneeling on the bottom of the boat. Canoes are open on top, and pointed at both ends.]