a flat float (usually made of logs or planks) that can be used for transport or as a platform for swimmers;
(often followed by `of'') a large number or amount or extent; "a batch of letters"; "a deal of trouble"; "a lot of money"; "he made a mint on the stock market"; "it must have cost plenty";
make into a raft; "raft these logs";
travel by raft in water; "Raft the Colorado River";