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underlie

un·der·lie

underlie

 
pronunciation:
uhn dr laI
part of speech: transitive verb
inflections: underlain, underlay, underlies, underlying
definition 1: to be situated under; lie under or beneath.
Concrete underlies the floor boards.
definition 2: to be the foundation or basis of.
That siblings should stay together is one of the principles that underlies our adoption policy.What were the motivating factors that underlay this act of aggression?Let's look at the evidence that underlies the author's argument.