General synonyms:
* Describe
* Outline
* Explain
* Define
* Depict
* Sketch
* Trace
* Portray
* Illustrate
* Enumerate
More specific synonyms:
* Articulate: (emphasizes clear and precise expression)
* Specify: (emphasizes providing specific details)
* Elucidate: (emphasizes making something clear or understandable)
* Disclose: (emphasizes revealing something previously hidden)
* Map out: (emphasizes creating a clear plan or strategy)
* Set forth: (emphasizes presenting something formally)
The best synonym for "delineate" will depend on the specific context and what you want to emphasize.