What is the meaning of ?

The hiragana syllable (mo). Its equivalent in katakana is (mo). It is the thirty-fifth syllable in the gojūon order; its position is (ma-gyō o-dan, row ma, section o).

too; also; as well

even

all; every

Used to emphasize amounts.

: most

: mourning

: clothes

: algae

: mask, face, surface

non-unique topic marker: also, even

Used to form the conjectural form of verbs, equivalent to modern (-u)/よう (-yō)

Source: wiktionary.org