Definitions
1.NounA retardation; a delay.
2.NounA slowing down of the tempo; a ritardando.
3.NounA person with mental retardation."The retard in our class needs special help."
4.NounA person or being who is extremely stupid or slow to learn.
5.VerbTo keep delaying; to continue to hinder; to prevent from progressing."retard the march of an army; retard the motion of a ship"
6.VerbTo put off; to postpone."to retard the attacks of old age; to retard a rupture between nations"
7.VerbTo be slow or dilatory to perform (something).
8.VerbTo decelerate; to slow down.
9.VerbTo stay back.