Questions & Answers about Tiu verko estas longa sed bela.
Tiu means that or that one.
In Tiu verko, it works like a demonstrative determiner: that work.
A useful comparison:
- tiu verko = that work
- ĉi tiu verko = this work
So tiu usually points to something a bit more distant, while ĉi tiu points to something nearer.
Verko means a work, usually in the sense of a created work, especially an artistic, literary, or intellectual one.
Depending on context, it could mean things like:
- a literary work
- a piece of art
- a composition
- a work in a general creative sense
So in this sentence, verko is not just any kind of job or labor. It is more like a work / creation.