What is the meaning of ?

The hiragana syllable (na). Its equivalent in katakana is (na). It is the twenty-first syllable in the gojūon order; its position is (na-gyō a-dan, row na, section a).

used to get someone's attention, generally carries neutral or slightly positive connotations

sentence-final particle indicating emotion or mild emphasis

copula particle used after 形容動詞 (keiyōdōshi, often referred to in English teaching texts as -na adjective, literally adjective verb) to make them function as adjectives: that is; that are

indicates prohibition: don't

indicates an imperative statement or command: do

any sharp and thin cutting implement: a blade, edge

middle

genitive case marker

(before the irrealis stem of a サ行変格活用 or カ行変格活用 verb and before the continuative stem of other verbs) indirectly indicates prohibition: don't

(before the continuative stem of a verb followed by ) entreats the listener and indirectly expresses prohibition: please don't

: name

: written character

, , : side dish, especially fish, greens, etc.

: first-person singular pronoun: I, me; second-person singular pronoun: you, thou

, : third-person reflexive pronoun: one, oneself, itself

Source: wiktionary.org