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Meaning of two-by-four

two-by-four

Pronunciation: (t'bī-fôr", -fōr", -bu-), [key]
— adj.
  1. two units thick and four units wide, esp. in inches.
  2. lacking adequate space; cramped: a small, two-by-four room.
  3. unimportant; insignificant: Theirs was a petty, two-by-four operation.
—n.
  1. a timber measuring 2 by 4 in. (5 × 10 cm) in cross section, when untrimmed: equivalent to 1 by 3 in. (4 × 9 cm) when trimmed.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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