Initial

初期の

shoki no

(chronologically first)

始めの

hajime no

(chronologically first)

始めの

hajime no

(spatially first)

最初の

saisho no

(spatially first)

イニシャル

inisharu

(first letters of a person's name as a unit)

イニシャル

inisharu

(calligraphy: distinguished initial letter)

声母

seibo

(first part of a syllable (onset))

頭文字

kashiramoji

(first letter of a word)