repeat

Repeat is the act of doing or saying something again or of something occurring again. As a verb, to repeat means to reproduce an action or statement. As a noun, a repeat can refer to an instance of something that occurs again, such as a repeat performance or a repeat broadcast.

In music, a repeat indicates that a section should be performed again. Repetition is guided by repeat signs or by instructions such as Da Capo. Refrain describes a recurring line or section of a song.

In media and communications, a repeat is a re-broadcast or re-run of previously aired content. A device called a repeater or booster regenerates a signal to extend transmission range.

In computing, repeat refers to a loop construct that executes a block of code multiple times. Different languages implement it with various syntax, such as repeat-until or repeat-while loops.

In scientific testing, repeatability describes the degree to which experiments yield the same results under the same conditions. It is related to replication, which involves independent reproduction of findings using different conditions or laboratories.