What is the meaning of Launce?

Obsolete form of lance.

sand eel, sand lance, fish of the family Ammodytidae

Obsolete form of lance.

A balance.

A lance (long spear).

A javelin (throwing spear).

A lancer; someone armed with a lance.

That which is long and pointed.

alternative form of launcen (“to push forwards”)

Source: wiktionary.org