leadline

Etymology 1
(verb "to lead")

Noun

 * 1) A leash or strap for leading an animal.

Etymology 2
(after the metal); the attached plummet is usually made from lead.

Noun

 * 1) A sounding line; an instrument used in navigation to measure water depth.
 * 2)  A weighted line for holding down the lower edge of a gillnet.
 * 1)  A weighted line for holding down the lower edge of a gillnet.

Translations

 * Finnish: alapaula
 * Ingrian: alaselys