Meaning

• A flat-bottomed craft able to float and drift on water, used for transport or as a waterborne platform.

  "An inflatable raft. A log raft."

• (by extension) Any flattish thing, usually wooden, used in a similar fashion.

• A thick crowd of seabirds or sea mammals, particularly a group of penguins when in the water.

• A collection of logs, fallen trees, etc. which obstructs navigation in a river.

• (when ordering food) A slice of toast.

• A square array of sensors forming part of a large telescope.

Meaning

• To convey on a raft.

• To make into a raft.

• To travel by raft.

• To dock (toolbars, etc.) so that they share horizontal or vertical space.