Definitions

1. verb

to remove an item from the front of a queue or a data structure, especially one that is first in line

“The server software will dequeue the requests from the queue.”

2. verb

to remove an item from the end of a queue or a data structure

“The program dequeues the last item from the stack.”

3. noun

the process of removing an item from the front of a queue or data structure

“The dequeue operation has a time complexity of O(1).”