noun / ~する noun:

• doing simultaneously

noun / ~する noun:

• studying two lines together (as a major and a minor)

noun / ~する noun:

• serving concurrently as; holding the additional post of

noun / ~する noun:

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

noun:

• subject for a poem

noun / ~する noun:

• being proficient in both; combine both

noun / ~する noun:

• uniting; unity

noun / ~する noun:

• carrying on a second line of work