underlay See underlie [also: underlaid]underlay n : a pad placed under a carpet [syn: carpet pad, rug pad, underlayment]
1 raise or support (the level of printing) by inserting a piece of paper or cardboard under the type; "underlay the plate"
2 put (something) under or beneath; "They underlaid athe shingles with roofing paper"
3 provide with a base, support, lining, or backing; "underlay the boards with joists" [also: underlaid]underlie
1 be or form the base for
- Rhymes: -eɪ