The smallest animal of a litter. / (by extension) The smallest child in the family. / Undersized or stunted plant, animal or person. / (slang) An uninfluential or unimportant person; a nobody.

plural of runt

Not properly grown; having a growth shortage.

A surname.

The production of a runt in a litter of animals.

A wasting graft-versus-host disease of animals.

(Scotland, obsolete) A cabbage stem.

plural of kale runt

plural of runt of the litter

(idiomatic) the smallest and weakest person in a group, especially a group of siblings