Définitions
1.Verbsimple past of underlie
2.VerbTo lay (something) underneath something else; to put under.
3.VerbTo provide a support for something; to raise or support by something laid under."to underlay a cut, plate, or the like, for printing"
4.VerbTo put a tap on (a shoe).
5.VerbTo incline from the vertical.
6.NounA layer (of earth, etc.) that lies under another; substratum.
7.NounA soft floor covering that lies under a carpet.
8.NounAnything that is underlaid.
9.NounA piece of paper pasted under woodcuts, stereotype plates, etc. in a form, to bring them up to the necessary level for printing.
10.NounLyrics; or more specifically, the way in which lyrics are assigned to musical notes."The underlay in bar 3 is unclear in Handel's manuscript."