lark

1 lark /ˈlɑɚk/ noun
plural larks
1 lark
/ˈlɑɚk/
noun
plural larks
Britannica Dictionary definition of LARK
[count]
: any one of several birds that usually have pleasant songs — see also meadowlark, skylark
2 lark /ˈlɑɚk/ noun
plural larks
2 lark
/ˈlɑɚk/
noun
plural larks
Britannica Dictionary definition of LARK
informal
1 
[count] : something done for enjoyment or adventure
2 
[noncount] British : activity of a specified kind : business
3 lark /ˈlɑɚk/ verb
larks; larked; larking
3 lark
/ˈlɑɚk/
verb
larks; larked; larking
Britannica Dictionary definition of LARK

lark about

[phrasal verb] British, informal or lark around
: to behave in a silly and enjoyable way