What is the meaning of Els?

plural of el

Obsolete form of else.

they

the; masculine plural definite article

them (masculine, direct or indirect object)

them (feminine, indirect object only)

indefinite genitive singular of el

alder (tree of the genus Alnus)

awl

bodkin

they

elsewhere

they

indefinite genitive singular of el

nominative plural of el

Source: wiktionary.org