必ひつ要よう

ひ

つ

よ

う

Common wordJLPTN4Freq.FrequencyTop 200

Meanings

1

na-adjective

Describes something that is required or indispensable. Used as a na-adjective.

2

noun

Used as a noun to refer to the state or thing that is required.

必ひつ要ようUsage100%
Standard kanji spelling; high-frequency word.
必ひつ用ようUsage<1%
Rare variant; can imply 'must be used' rather than just 'needed', but this distinction is not widely maintained in modern usage.

必ひっ須す
必須 is stronger, meaning 'mandatory' or 'indispensable', often used in formal or technical contexts. 必要 is more general and common.
要いる
要る is a verb meaning 'to be needed', used in everyday speech. 必要 is more formal and can be used as a noun or adjective.

Compound of 必 (certainly, necessarily) and 要 (need, essential). The spelling 必用 is a variant where 用 (use) replaces 要, implying 'must be used'.