- a river in the central Netherlands, flowing W to the Meuse River; the N branch of the lower Rhine. 40 miles (64 km) long.
- a small area in which birds of certain species, notably the black grouse, gather for sexual display and courtship
- the act or practice of so gathering
- the standard monetary unit of Albania, divided into 100 qindarka
v.to engage in courtship displays of certain animals, 1871, probably from Swedish leka “to play,” cognate of English dialectal verb lake (see lark (v.)).