close friend, bosom buddy / crony, chum

空: sky, air, heaven

a unisex given name / 大翔: a male given name

空で: by heart, by rote

(chiefly women's speech) first person singular pronoun: I, me

the sky

sky blue

(archaic) sudden-onset pain in one's hands or arms with no clear immediate cause, such as due to arthritis or neuralgia

cloudy

by heart, from memory, by rote