小冊子|しょうさっしshousasshi[3]nakadaka (mid-high)

1. nounbooklet; pamphlet
   この小冊子しょうさっしは無料むりょうだ。↗

   This booklet is free of charge.

• SynonymパンフレットNeutralLoanword for promotional or explanatory pamphlets; the everyday default, while 「小冊子」 is the more formal, general word for a thin booklet.
• SynonymパンフCasualColloquial short form of 「パンフレット」, common in speech; e.g. a concert program handed out at the venue.
• SynonymブックレットNeutralLoanword for a small booklet, often used for CD liner booklets and similar printed matter.
• Synonym小冊しょうさつWrittenWritten word for a small or thin book; rare even in formal prose — say 「小冊子」 instead.
• Antonym大冊たいさつWrittenWritten word for a thick, bulky volume — the opposite of a thin 「小冊子」.

For a thin booklet, 「小冊子」 is the formal choice, as in 「解説の小冊子」. Promotional pamphlets are 「パンフレット」, shortened to 「パンフ」 in casual speech; CD booklets are 「ブックレット」. The opposite is 「大冊」, a bulky volume.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 小型こがたで薄うすい書物しょもつ。