A collection of logs, boards, pieces of timber, or the like, fastened together, either for their own collective conveyance on the water, or to serve as a support in conveying other things; a float.

A collection of logs, fallen trees, etc. (such as is formed in some Western rivers of the United States), which obstructs navigation.

i) A lifeboat or small (often inflatable) boat, esp. for use in emergencies, ii) a floating accumulation of trees, ice, etc., iii) transport as or on a raft, cross (water) on a raft.

A speleothem consisting of a thin layer of crystalline material which forms and floats on the surface of a cave pool. Sinks if water surface is disturbed. May form many layers in a dried out pool.

A large collection of people or things taken indiscriminately.

a very handy thing to carry you across the water, from one shore to another

Cluster of eggs laid on the surface of permanent water.

(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"

A firm slab, usually made from concrete, designed to spread the weight of a structure on soft ground.

A footing or foundation, usually a large thick concrete mat.