lark

Short definition from Wiktionary

Noun

1. 1
   Any of various small, singing passerine birds of the family Alaudidae.
2. 2
   Any of various similar-appearing birds, but usually ground-living, such as the meadowlark and titlark.
3. 3
   One who wakes early; one who is up with the larks.
4. 4
   A jolly or peppy person.
5. 5
   A frolic or romp, some fun.
6. 6
   A prank.

Verb

1. 1
   To catch larks (type of bird).
2. 2
   To sport, engage in harmless pranking.
3. 3
   To frolic, engage in carefree adventure.

Proper noun

1. 1
   A surname transferred from the nickname, from lark as a byname or for a catcher and seller of larks.
2. 2
   A surname originating as a patronymic shortened from Larkin, a medieval diminutive of Laurence.
3. 3
   A male given name transferred from the surname, of occasional usage.
4. 4
   A female given name from English from the lark bird.
5. 5
   A river in England, on the border between Suffolk and Cambridgeshire.
6. 6
   Alternative form of Larak (“island off the coast of Iran”).