A child who plays in the mud; a child that spends most of its time in the streets, a street urchin.
A soldier of the Royal Engineers.
Any of various birds that are found in muddy places or build their nests with mud, especially Anthus petrosus and Alauda arvensis.
The Grallina cyanoleuca that builds its nest with mud into a bowl-like shape.
A racehorse that performs well on muddy or wet tracks.
To scavenge in river or harbor mud for items of value.
A street urchin, a child who lives, or spends most of their time, in the streets.
One of a pair in a series of small card cylinders arranged around a carding drum; so called from its fancied resemblance to the hedgehog.
A sea urchin.
A mischievous child.
A neutron-generating device that triggered the nuclear detonation of the earliest plutonium atomic bombs.