Lark (person) definition

(1) Any carefree episode

(2) Any of numerous predominantly Old World birds noted for their singing

(3) A songbird that lives mainly on the ground in open country; has streaky brown plumage

(4) North American songbirds having a yellow breast

(5) Play boisterously

"The children frolicked in the garden"

"The gamboling lambs in the meadows"

"The toddlers romped in the playroom"