Brown Driver Briggs

 1. flood, deluge.
  1) Noah's flood that submerged the entire planet earth under
water for about a year

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Some think Noah's flood was only local. However the
description of it found in Gen. 6 through 8 makes this patently
absurd. If it was local, Noah had 120 years to migrate out of
the area to safe ground! Why waste all that effort building a
ship?
With the possible exception of Ps. 29:10, this word always
refers to Noah's flood.