Meanings
- uncountablecomputingThe speculative execution of code that may or may not be required to execute, so that the results are available in advance if that branch is in fact subsequently taken.
Origin
Deverbal from run ahead.
Full word history & related roots →Cite this entry
runahead. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/runahead
“runahead.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/runahead. Accessed November 3, 2026.
WatkinsX Dictionary, s.v. “runahead,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/runahead.
Source: runahead on Wiktionary, CC BY-SA 4.0.