List: noun or participle which takes the aux. verb suru

noun  noun (generic)  noun or participle taking the aux. verb する  intransitive verb 

• weariness

rare term  noun  noun (generic)  noun or participle taking the aux. verb する 

• extreme fatigue

noun  noun (generic)  noun or participle taking the aux. verb する 

• holding of concurrent (official) posts, concurrent post

noun  noun (generic)  noun or participle taking the aux. verb する  transitive verb 

• additional post

noun  noun (generic)  noun or participle taking the aux. verb する  intransitive verb  transitive verb 

• working twice as hard, working day and night
• doing simultaneously

noun  noun (generic)  noun or participle taking the aux. verb する  transitive verb 

• studying two subjects together (e.g. as a major and a minor)

noun  noun (generic)  noun or participle taking the aux. verb する  transitive verb 

• serving concurrently as, holding the additional post of

noun  noun (generic)  noun or participle taking the aux. verb する  transitive verb 

• combined use, combination, dual-use, serving two purposes
• filling two positions

noun  noun (generic)  noun or participle taking the aux. verb する  transitive verb 

• being proficient in both, combine both

noun  noun (generic)  noun or participle taking the aux. verb する 

• uniting, unity