1. (noun) a solemn literary work that is the product of laborious cogitation

• literary composition
• literary work

2. (noun) laborious cogitation

• cogitation
• study

1. (noun) a solemn literary work that is the product of laborious cogitation

• dilate
• elaborate
• enlarge
• expand
• expatiate
• exposit
• expound
• flesh out
• lucubrate