also: ししゅ
noun, noun which may take the genitive case particle 'no'
four kinds; four sorts
General counter for types or varieties. Can be used as a noun or with の to modify another noun.
This shop carries four kinds of cheese.
The exam covers four subjects.
fourth-class mail
Abbreviation of 第四種郵便物, a Japan Post category for certain periodicals and educational materials. Used mainly in postal contexts.
See also: 第四種郵便物
This magazine can be sent as fourth-class mail.
fourth-class mail
Standard kanji form. Reading よんしゅ is more common in modern Japanese.
Alternate reading ししゅ, less common and may appear in formal or older contexts.
Numerical variant, often used in lists or technical contexts.
Compound of 四 (four) and 種 (kind, type). The postal sense is an abbreviation of 第四種郵便物.