overlay
[verb]
Synonyms: cover, blanket, cap, crown, overcast, overspread

[TahlilGaran] English Synonym Dictionary ▲

I. o‧ver‧lay¹ /ˌəʊvəˈleɪ $ ˌoʊvər-/ verb (past tense and past participle overlaid) [transitive]

1. to cover or be on top of something
be overlaid with something
The wood is overlaid with silver.

2. if one quality, sound etc overlays another, it is added to it and is often stronger or more noticeable:
The roar of the engines was overlaid by a loud banging.

[TahlilGaran] Dictionary of Contemporary English ▲

II. o‧ver‧lay² /ˈəʊvəleɪ $ ˈoʊvər-/ noun [countable]

1. something which covers something else:
the brass fire surround with its decorative overlay

2. a transparent sheet with a picture or drawing on it which is put on top of another picture to change it

3. an additional quality or feeling:
sad stories with an overlay of humour

[TahlilGaran] Dictionary of Contemporary English ▲