What is the meaning of Alls?

All.

plural of all

everything, all

inflection of allr:

1. masculine genitive singular
2. neuter genitive singular

masculine genitive singular

neuter genitive singular

as, since

plural of all

romanization of 𐌰𐌻𐌻𐍃

altogether, in all

masculine/neuter genitive singular of allur

at all

common genitive singular of all

Source: wiktionary.org