Definition of two-by-four
: a piece of lumber approximately 2 by 4 inches as sawed and usually 1⁵/₈ by 3⁵/₈ inches when dressed
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First Known Use of two-by-four
1884
Definition of two-by-four
1
: small or petty of its kind
- this house and its two-by-four garden
- —Philip Barry
2
: measuring two units (such as inches) by four
First Known Use of two-by-four
1897
TWO-BY-FOUR Defined for English Language Learners
Definition of two-by-four for English Language Learners
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: a piece of wood that has been cut to be long and straight so that it can be used for building things and that is about 2 inches thick and 4 inches wide
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