(linguistics) a specific historical consonantal shift of the Japanese language during the Heian Period, wherein many word-medial /f/ sounds changed to /w/ sounds

(linguistics) a historical consonantal shift of the Japanese language involving the kana は/ハ (ha), ひ/ヒ (hi), ふ/フ (fu), へ/ヘ (he), and ほ/ホ (ho)

understanding, comprehension / appreciation

difficult / hard, probably impossible

(linguistics) sound shift / (linguistics) sound shifts from Old Japanese to Modern Japanese, especially those which are preserved in historical kana usage.

understand, comprehend / appreciate

rule; regulation

The katakana syllable ハ (ha). Its equivalent in hiragana is は (ha). It is the twenty-sixth syllable in the gojūon order; its position is ハ行ア段 (ha-gyō a-dan, “row ha, section a”).

do (musical note)

a line of text / (mathematics) a row of a matrix / (calligraphy) Abbreviation of 行書 (“semi-cursive script”).