(1) An error condition that occurs when there is no room in the stack for a new item. A stack overflow can also occur when other things go awry; for example, a bad expansion card or one that isn't seated properly in the slot can cause erratic signals eventually leading to a stack overflow error message. Contrast with
stack underflow. See
stack.
(2) (Stack Overflow) A technology Q&A website that serves more than 100 million software engineers worldwide. Users pose questions about every language and platform in the tech industry, and to date, more than 25 million questions have been asked. Stack Overflow accepts only specific technical questions and not general ones that require an opinion as an answer. Founded in 2008 and part of the Stack Exchange Network, Stack Overflow was acquired by Netherlands-based investment group Prosus N.V. in 2021. See
freeCodeCamp.