• tradebook,
• tradebooks,
• rrade book,
• frade book,
• grade book,
• yrade book,
• 6rade book,
• 5rade book,
• teade book,
• tdade book,
• tfade book,
• ttade book,
• t5ade book,
• t4ade book,
• trzde book,
• trsde book,
• trwde book,
• trqde book,
• trase book,
• traxe book

The adjective form of "trade book" is "tradebook".

The plural form of the word "trade book" is "trade books".

The singular form of "trade book" is "trade book".