first strike

noun

An attack (typically nuclear) launched without warning in the absence of a prior attack by one's opponent, with the intention of destroying one's opponent's ability to retaliate.

“Near-synonym: decapitation strike”

Meanings

nounfirst strike (plural first strikes)

plural first strikes

  1. governmentAn attack (typically nuclear) launched without warning in the absence of a prior attack by one's opponent, with the intention of destroying one's opponent's ability to retaliate.

    Near-synonym: decapitation strike

    3 more examples

    During the Cold War, both sides feared that the other was preparing to launch a first strike.

    "Where I come from 'proactive defense' is a euphemism for "first strike." "This is not that approach, Putzho. We have evolved to defend ourselves with a much subtler, gentler approach."

    2017 June 23, Howard Tayler, Schlock Mercenary, archived from the original on 20 Jan 2024

    In the end, the question proved to be academic. When SCP-3125 arrived, whether it knew ω-0 was there or not, it took no special action against it, and had no need to. Most of ω-0's members' anchors were Foundationers, or Foundation-adjacent. With those people's minds blown away in the first strike, the dense web of mutual memory which had held the Task Force together since its formation tore loose. More than half of the Task Force was cast into the void and died; the final, real death they had evaded for years.

    2019 August 26, qntm, “Unthreaded”, in There Is No Antimemetics Division, →ISBN, page 162

    Synonyms: decapitation strike

  2. criminal lawA first offense by a lawbreaker, as counted by a three-strikes law.

    His first strike was when he stole a car to go for a joyride.

  3. hobbiesOne of the first few coins struck from a new set of dies.

    Collectors pay a premium for first strikes in order to get their hands on coins with the crispest possible detailing.

Synonyms & antonyms

nounAn attack (typically nuclear) launched without warning in the absence of a prior attack by one's opponent, with the intention of destroying one's opponent's ability to retaliate.

Cite this entry
APA

first strike. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/first%20strike

MLA

“first strike.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/first%20strike. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “first strike,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/first%20strike.

Source: first strike on Wiktionary, CC BY-SA 4.0.