Definify.com
Webster 1913 Edition
Skylark
Sky′larkˊ
,Noun.
 (Zool.) 
A lark that mounts and sings as it files, especially the common species (
Alauda arvensis
) found in Europe and in some parts of Asia, and celebrated for its melodious song; – called also sky laverock
. See under Lark
. ☞ The Australian skylark (
Cincloramphus cantillans
) is a pipit which has the habit of ascending perpendicularly like a skylark, but it lacks the song of a true lark. The Missouri skylark is a pipit (Anthus Spraguei
) of the Western United States, resembling the skylark in habit and song. Webster 1828 Edition
Skylark
SKY'LARK
,Noun.
  Definition 2025
skylark
skylark
English

A skylark.
Noun
skylark (plural skylarks)
- A small brown passerine bird, Alauda arvensis, that sings as it flies high into the air.
 
Derived terms
- Eurasian skylark (Alauda arvensis)
 - Japanese skylark (Alauda japonica)
 - oriental skylark (Alauda gulgula)
 
Translations
small brown passerine bird
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Verb
skylark (third-person singular simple present skylarks, present participle skylarking, simple past and past participle skylarked)
-  (dated, originally  nautical) To jump about joyfully, frolic; to play around, play tricks.
-  1851, Herman Melville, Moby-Dick:
- I cherished no malice towards him, though he had been skylarking with me not a little in the matter of my bedfellow.
 
 
 -  1851, Herman Melville, Moby-Dick:
 
Derived terms
References
-  Google Ngram Viewer: "skylark, skylarking"
- Peak usage 1900—1925, steady decline thereafter.
 
 -  Cultural Studies Review, October 2008, p. 40:
- "...'skylarking' is a somewhat outmoded term..."