To walk with heavy footfalls.
To gather in dense groups.
To form clusters or lumps.
To strike; to beat.
A thick group or bunch, especially of bushes or hair.
A small group of trees or plants.
A cluster or lump; an unshaped piece or mass.
A dull thud.
A thick addition to the sole of a shoe.
The compressed clay of coal strata.
To make a strenuous long-distance march.
A long-distance march carrying full kit.