“I second that” is a compact way to express agreement or support for a statement just made. The phrase connects with the formal verb “second,” used to support a motion in a meeting, but everyday conversational use normally means simply “I agree.”
ReviewedEvidence1 sourceSectionPhrases & Idioms
Quick answer
“I second that” means “I agree with that” or “I support what was just said.” The verb “second” also has a formal meeting sense of supporting a motion.
Key details
Canonical FormI Second That
Core MeaningI agree with or support what was just said
Further guidance
History Boundary
This guide publishes the supported current meaning and usage boundary without making an unsupported absolute first-use or coinage claim.
Meaning
“I second that” can be a conversational way to say “I agree,” drawing on the verb “second,” which also has a formal meeting sense of supporting a motion.
Usage Boundary
In a formal meeting, “second” has a procedural meaning tied to supporting a motion; in ordinary conversation, “I second that” is usually simply an expression of agreement.
Sources and evidence
Sources are shown with the role they play in this guide. Historical or style-sensitive claims are kept within the evidence boundary described above.
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