to lay under or beneath.
to provide with something laid underneath; raise or support with something laid underneath: The manufacturer underlays the chrome finish with a zinc coating.
to extend across the bottom of.
Printing. a piece or pieces of paper put under type or cuts to bring them to the proper height for printing.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use underlay in a sentence
Thus was paved the way for the abstractions that underlay the casino capitalism about which everybody now has nothing good to say.
It was right that Liosha should be made aware of the emotional subtleties that underlay the bare facts.Jaffery | William J. Locke
The difference between Wilkins's and the Majestic resided in the theory which underlay its manner.The Regent | E. Arnold Bennett
Some dark villainy underlay this, and that the witch doctor was connected with it was borne in upon my mind without a doubt.A Frontier Mystery | Bertram Mitford
It glowed and iridesced in the sunlight as if gleaming up from underlay under underlay of red.The Red One | Jack London
The hills of Champagne, green with vines, and white as with an underlay of chalk, rose behind us.Lazarre | Mary Hartwell Catherwood
British Dictionary definitions for underlay
to place (something) under or beneath
to support by something laid beneath
to achieve the correct printing pressure all over (a forme block) or to bring (a block) up to type height by adding material, such as paper, to the appropriate areas beneath it
a layer, lining, support, etc, laid underneath something else
printing material, such as paper, used to underlay a forme or block
felt, rubber, etc, laid beneath a carpet to increase insulation and resilience
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012